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Nicola P Klein MD, PhD

TitleResearch Scientist III
InstitutionKaiser Permanente Northern California
DepartmentDivision of Research
Address2000 Broadway
Oakland CA 94612
ORCID ORCID Icon0000-0003-1777-4814 Additional info
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    Other Positions
    TitleDirector, Kaiser Permanente Vaccine Study Center
    InstitutionKaiser Permanente Northern California
    DepartmentDivision of Research


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    Nicola P. Klein, MD, PhD, is a research scientist at the Kaiser Permanente Northern California Division of Research; co-director of the Kaiser Permanente Vaccine Study Center; and clinical instructor in the Department of Pediatrics, Lucile Salter Packard Children’s Hospital at Stanford, Stanford University School of Medicine. Dr. Klein’s research interests include vaccine safety and efficacy, genetic influences on vaccine responses, and vaccine responses among at-risk populations (premature infants and children with chronic or genetic diseases). Dr. Klein received her medical and doctorate degrees at New York University School of Medicine.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Thompson MG, Stenehjem E, Grannis S, Ball SW, Naleway AL, Ong TC, DeSilva MB, Natarajan K, Bozio CH, Lewis N, Dascomb K, Dixon BE, Birch RJ, Irving SA, Rao S, Kharbanda E, Han J, Reynolds S, Goddard K, Grisel N, Fadel WF, Levy ME, Ferdinands J, Fireman B, Arndorfer J, Valvi NR, Rowley EA, Patel P, Zerbo O, Griggs EP, Porter RM, Demarco M, Blanton L, Steffens A, Zhuang Y, Olson N, Barron M, Shifflett P, Schrag SJ, Verani JR, Fry A, Gaglani M, Azziz-Baumgartner E, Klein NP. Effectiveness of Covid-19 Vaccines in Ambulatory and Inpatient Care Settings. N Engl J Med. 2021 Sep 08. PMID: 34496194.
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    2. Klein NP, Lewis N, Goddard K, Fireman B, Zerbo O, Hanson KE, Donahue JG, Kharbanda EO, Naleway A, Nelson JC, Xu S, Yih WK, Glanz JM, Williams JTB, Hambidge SJ, Lewin BJ, Shimabukuro TT, DeStefano F, Weintraub ES. Surveillance for Adverse Events After COVID-19 mRNA Vaccination. JAMA. 2021 Sep 03. PMID: 34477808.
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    3. Zerbo O, Lewis N, Fireman B, Goddard K, Skarbinski J, Sejvar JJ, Azziz-Baumgartner E, Klein NP. Population-based assessment of risks for severe COVID-19 disease outcomes. Influenza Other Respir Viruses. 2021 Aug 25. PMID: 34432371.
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    4. Hansen J, Decker MD, Lewis E, Fireman B, Pool V, Greenberg DP, Johnson DR, Black S, Klein NP. Hypotonic-hyporesponsive Episodes After Diphtheria, Tetanus and Acellular Pertussis Vaccination. Pediatr Infect Dis J. 2021 Aug 20. PMID: 34420008.
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    5. Rosenblum HG, Hadler SC, Moulia D, Shimabukuro TT, Su JR, Tepper NK, Ess KC, Woo EJ, Mba-Jonas A, Alimchandani M, Nair N, Klein NP, Hanson KE, Markowitz LE, Wharton M, McNally VV, Romero JR, Talbot HK, Lee GM, Daley MF, Mbaeyi SA, Oliver SE. Use of COVID-19 Vaccines After Reports of Adverse Events Among Adult Recipients of Janssen (Johnson & Johnson) and mRNA COVID-19 Vaccines (Pfizer-BioNTech and Moderna): Update from the Advisory Committee on Immunization Practices - United States, July 2021. MMWR Morb Mortal Wkly Rep. 2021 Aug 13; 70(32):1094-1099. PMID: 34383735; PMCID: PMC8360272.
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    6. Klein NP, Peyrani P, Yacisin K, Caldwell N, Xu X, Scully IL, Scott DA, Jansen KU, Gruber WC, Watson W. A phase 3, randomized, double-blind study to evaluate the immunogenicity and safety of 3 lots of 20-valent pneumococcal conjugate vaccine in pneumococcal vaccine-naive adults 18 through 49 years of age. Vaccine. 2021 Sep 07; 39(38):5428-5435. PMID: 34315611.
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    7. Pingali C, Meghani M, Razzaghi H, Lamias MJ, Weintraub E, Kenigsberg TA, Klein NP, Lewis N, Fireman B, Zerbo O, Bartlett J, Goddard K, Donahue J, Hanson K, Naleway A, Kharbanda EO, Yih WK, Nelson JC, Lewin BJ, Williams JTB, Glanz JM, Singleton JA, Patel SA. COVID-19 Vaccination Coverage Among Insured Persons Aged =16 Years, by Race/Ethnicity and Other Selected Characteristics - Eight Integrated Health Care Organizations, United States, December 14, 2020-May 15, 2021. MMWR Morb Mortal Wkly Rep. 2021 Jul 16; 70(28):985-990. PMID: 34264911; PMCID: PMC8314710.
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    8. Naleway AL, Crane B, Irving SA, Bachman D, Vesco KK, Daley MF, Getahun D, Glenn SC, Hambidge SJ, Jackson LA, Klein NP, McCarthy NL, McClure DL, Panagiotakopoulos L, Panozzo CA, Vazquez-Benitez G, Weintraub ES, Zerbo O, Kharbanda EO. Vaccine Safety Datalink infrastructure enhancements for evaluating the safety of maternal vaccination. Ther Adv Drug Saf. 2021; 12:20420986211021233. PMID: 34178302; PMCID: PMC8207278.
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    9. Frenck RW, Klein NP, Kitchin N, Gurtman A, Absalon J, Lockhart S, Perez JL, Walter EB, Senders S, Bailey R, Swanson KA, Ma H, Xu X, Koury K, Kalina WV, Cooper D, Jennings T, Brandon DM, Thomas SJ, Türeci Ö, Tresnan DB, Mather S, Dormitzer PR, Sahin U, Jansen KU, Gruber WC, C4591001 Clinical Trial Group. Safety, Immunogenicity, and Efficacy of the BNT162b2 Covid-19 Vaccine in Adolescents. N Engl J Med. 2021 07 15; 385(3):239-250. PMID: 34043894; PMCID: PMC8174030.
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    10. Liles E, Irving SA, Dandamudi P, Belongia EA, Daley MF, DeStefano F, Jackson LA, Jacobsen SJ, Kharbanda E, Klein NP, Weintraub E, Naleway AL. Incidence of pediatric inflammatory bowel disease within the Vaccine Safety Datalink network and evaluation of association with rotavirus vaccination. Vaccine. 2021 06 16; 39(27):3614-3620. PMID: 34052066.
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    11. Daley MF, Reifler LM, Shoup JA, Narwaney KJ, Kharbanda EO, Groom HC, Jackson ML, Jacobsen SJ, McLean HQ, Klein NP, Williams JTB, Weintraub ES, McNeil MM, Glanz JM. Temporal Trends in Undervaccination: A Population-Based Cohort Study. Am J Prev Med. 2021 07; 61(1):64-72. PMID: 34148627.
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    12. Kharbanda EO, Vazquez-Benitez G, DeSilva MB, Naleway AL, Klein NP, Hechter RC, Glanz JM, Donahue JG, Jackson LA, Sheth SS, Greenberg V, Panagiotakopoulos L, Mba-Jonas A, Lipkind HS. Association of Inadvertent 9-Valent Human Papillomavirus Vaccine in Pregnancy With Spontaneous Abortion and Adverse Birth Outcomes. JAMA Netw Open. 2021 04 01; 4(4):e214340. PMID: 33818618; PMCID: PMC8022219.
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    13. Baxter R, Aukes L, Pelton SI, Yee A, Klein NP, Gruber WC, Scott DA, Center KJ. Impact of the 13-Valent Pneumococcal Conjugate Vaccine on Invasive Pneumococcal Disease After Introduction Into Routine Pediatric Use. J Pediatric Infect Dis Soc. 2021 Mar 26; 10(2):141-150. PMID: 32415771; PMCID: PMC7996647.
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    14. Vogel TP, Top KA, Karatzios C, Hilmers DC, Tapia LI, Moceri P, Giovannini-Chami L, Wood N, Chandler RE, Klein NP, Schlaudecker EP, Poli MC, Muscal E, Munoz FM. Multisystem inflammatory syndrome in children and adults (MIS-C/A): Case definition & guidelines for data collection, analysis, and presentation of immunization safety data. Vaccine. 2021 05 21; 39(22):3037-3049. PMID: 33640145; PMCID: PMC7904456.
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    15. DeDominicis K, Buttenheim AM, Howa AC, Delamater PL, Salmon D, Klein NP, Omer SB. Studying attitudes towards vaccine hesitance and California law SB 277 in online discourse: A dataset and methodology. Data Brief. 2021 Apr; 35:106841. PMID: 33748356; PMCID: PMC7966830.
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    16. Aukes L, Fireman B, Lewis E, Timbol J, Hansen J, Yu H, Cai B, Gonzalez E, Lawrence J, Klein NP. A Risk Score to Predict Clostridioides difficile Infection. Open Forum Infect Dis. 2021 Mar; 8(3):ofab052. PMID: 33738316; PMCID: PMC7953654.
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    17. Holroyd TA, Howa AC, Proveaux TM, Delamater PL, Klein NP, Buttenheim AM, Limaye RJ, Omer SB, Salmon DA. School-level perceptions and enforcement of the elimination of nonmedical exemptions to vaccination in California. Hum Vaccin Immunother. 2021 07 03; 17(7):1986-1993. PMID: 33493075; PMCID: PMC8189058.
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    18. Klein NP, Zerbo O, Goddard K, Wang W, Fohner AE, Wiesner A, Shokoohi V, Coller J, Bok K, Gans HA. Genetic associations with a fever after measles-containing vaccines. Hum Vaccin Immunother. 2021 06 03; 17(6):1763-1769. PMID: 33351701; PMCID: PMC8115494.
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    19. Kharbanda EO, Vazquez-Benitez G, DeSilva MB, Spaulding AB, Daley MF, Naleway AL, Irving SA, Klein NP, Tseng HF, Jackson LA, Hambidge SJ, Olaiya O, Panozzo CA, Myers TR, Romitti PA. Developing algorithms for identifying major structural birth defects using automated electronic health data. Pharmacoepidemiol Drug Saf. 2021 02; 30(2):266-274. PMID: 33219586.
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    20. Panagiotakopoulos L, McCarthy NL, Tepper NK, Kharbanda EO, Lipkind HS, Vazquez-Benitez G, McClure DL, Greenberg V, Getahun D, Glanz JM, Naleway AL, Klein NP, Nelson JC, Weintraub ES. Evaluating the Association of Stillbirths After Maternal Vaccination in the Vaccine Safety Datalink. Obstet Gynecol. 2020 12; 136(6):1086-1094. PMID: 33156197; PMCID: PMC8108006.
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    21. Holroyd TA, Howa AC, Delamater PL, Klein NP, Buttenheim AM, Limaye RJ, Proveaux TM, Omer SB, Salmon DA. Parental vaccine attitudes, beliefs, and practices: initial evidence in California after a vaccine policy change. Hum Vaccin Immunother. 2021 06 03; 17(6):1675-1680. PMID: 33232210; PMCID: PMC8115753.
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    22. Zerbo O, Ray GT, Zhang L, Goddard K, Fireman B, Adams A, Omer S, Kulldorff M, Klein NP. Individual and Neighborhood Factors Associated With Failure to Vaccinate Against Influenza During Pregnancy. Am J Epidemiol. 2020 11 02; 189(11):1379-1388. PMID: 32735018; PMCID: PMC7604527.
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    23. Abu-Elyazeed R, Klein NP, Moerman L, Povey M, Pruitt A, Senders S, Silas P, Bi D, Rota-090 Study Group. Concomitant administration of a liquid formulation of human rotavirus vaccine (porcine circovirus-free) with routine childhood vaccines in infants in the United States: Results from a phase 3, randomized trial. Vaccine. 2021 03 05; 39(10):1534-1543. PMID: 33077301.
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    24. Panagiotakopoulos L, Myers TR, Gee J, Lipkind HS, Kharbanda EO, Ryan DS, Williams JTB, Naleway AL, Klein NP, Hambidge SJ, Jacobsen SJ, Glanz JM, Jackson LA, Shimabukuro TT, Weintraub ES. SARS-CoV-2 Infection Among Hospitalized Pregnant Women: Reasons for Admission and Pregnancy Characteristics - Eight U.S. Health Care Centers, March 1-May 30, 2020. MMWR Morb Mortal Wkly Rep. 2020 Sep 23; 69(38):1355-1359. PMID: 32970660; PMCID: PMC7727498.
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    25. DeDominicis K, Buttenheim AM, Howa AC, Delamater PL, Salmon D, Omer SB, Klein NP. Shouting at each other into the void: A linguistic network analysis of vaccine hesitance and support in online discourse regarding California law SB277. Soc Sci Med. 2020 12; 266:113216. PMID: 33126093.
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    26. Damron FH, Barbier M, Dubey P, Edwards KM, Gu XX, Klein NP, Lu K, Mills KHG, Pasetti MF, Read RC, Rohani P, Sebo P, Harvill ET. Overcoming Waning Immunity in Pertussis Vaccines: Workshop of the National Institute of Allergy and Infectious Diseases. J Immunol. 2020 08 15; 205(4):877-882. PMID: 32769142; PMCID: PMC7454230.
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    27. Platt HL, Greenberg D, Tapiero B, Clifford RA, Klein NP, Hurley DC, Shekar T, Li J, Hurtado K, Su SC, Nolan KM, Acosta CJ, McFetridge RD, Bickham K, Musey LK, V114-008 Study Group. A Phase II Trial of Safety, Tolerability and Immunogenicity of V114, a 15-Valent Pneumococcal Conjugate Vaccine, Compared With 13-Valent Pneumococcal Conjugate Vaccine in Healthy Infants. Pediatr Infect Dis J. 2020 08; 39(8):763-770. PMID: 32639460; PMCID: PMC7360095.
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    28. Glanternik JR, McDonald JC, Yee AH, Howell Ba A, Saba KN, Mellor RG, Fireman B, Klein NP. Evaluation of a Vaccine-Communication Tool for Physicians. J Pediatr. 2020 09; 224:72-78.e1. PMID: 32522526.
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    29. Hansen J, Goddard K, Timbol J, Zhang L, Lewis N, Dunkle L, Izikson R, Klein NP. Safety of Recombinant Influenza Vaccine Compared to Inactivated Influenza Vaccine in Adults: An Observational Study. Open Forum Infect Dis. 2020 Jun; 7(6):ofaa179. PMID: 32617368; PMCID: PMC7316363.
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    30. Weinmann S, Irving SA, Koppolu P, Naleway AL, Belongia EA, Hambidge SJ, Jackson ML, Klein NP, Lewin B, Liles E, Marin M, Smith N, Weintraub E, Chun C. Incidence of herpes zoster among varicella-vaccinated children, by number of vaccine doses and simultaneous administration of measles, mumps, and rubella vaccine. Vaccine. 2020 08 18; 38(37):5880-5884. PMID: 32444193.
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    31. Carol Liu YC, Ibekwe T, Kelso JM, Klein NP, Shehu N, Steuerwald W, Aneja S, Dudley MZ, Garry R, Munoz FM, Brighton Collaboration SNHL Working Group. Sensorineural hearing loss (SNHL) as an adverse event following immunization (AEFI): Case definition & guidelines for data collection, analysis, and presentation of immunization safety data. Vaccine. 2020 06 19; 38(30):4717-4731. PMID: 32418788.
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    32. Zerbo O, Modaressi S, Glanternik JR, Goddard K, Ross P, Lewis N, Klein NP. Identification and description of mumps cases in a non-outbreak setting and evaluation of the effectiveness of mumps-containing vaccines over time. Hum Vaccin Immunother. 2020 12 01; 16(12):3098-3102. PMID: 32401599.
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    33. Glanz JM, Clarke CL, Xu S, Daley MF, Shoup JA, Schroeder EB, Lewin BJ, McClure DL, Kharbanda E, Klein NP, DeStefano F. Association Between Rotavirus Vaccination and Type 1 Diabetes in Children. JAMA Pediatr. 2020 05 01; 174(5):455-462. PMID: 32150236; PMCID: PMC7063538.
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    34. Dawood FS, Garg S, Fink RV, Russell ML, Regan AK, Katz MA, Booth S, Chung H, Klein NP, Kwong JC, Levy A, Naleway A, Riesel D, Thompson MG, Wyant BE, Fell DB. Epidemiology and Clinical Outcomes of Hospitalizations for Acute Respiratory or Febrile Illness and Laboratory-Confirmed Influenza Among Pregnant Women During Six Influenza Seasons, 2010-2016. J Infect Dis. 2020 04 27; 221(10):1703-1712. PMID: 31875916.
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    35. Klein NP, Fireman B. If Influenza Vaccines Wane, Can We Delay Vaccination Without Compromising Coverage? Clin Infect Dis. 2020 04 10; 70(8):1560-1561. PMID: 31257408; PMCID: PMC7346755.
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    36. Ray GT, Lewis N, Klein NP, Daley MF, Lipsitch M, Fireman B. Depletion-of-susceptibles Bias in Analyses of Intra-season Waning of Influenza Vaccine Effectiveness. Clin Infect Dis. 2020 03 17; 70(7):1484-1486. PMID: 31351439; PMCID: PMC7318775.
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    37. Markowitz LE, Naleway AL, Klein NP, Lewis RM, Crane B, Querec TD, Hsiao A, Aukes L, Timbol J, Weinmann S, Liu G, Steinau M, Unger ER. Human Papillomavirus Vaccine Effectiveness Against HPV Infection: Evaluation of One, Two, and Three Doses. J Infect Dis. 2020 03 02; 221(6):910-918. PMID: 31784749.
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    38. Dagnew AF, Klein NP, Hervé C, Kalema G, Di Paolo E, Peterson J, Salaun B, Schuind A. The Adjuvanted Recombinant Zoster Vaccine in Adults Aged =65 Years Previously Vaccinated With a Live-Attenuated Herpes Zoster Vaccine. J Infect Dis. 2020 Feb 27. PMID: 32103273.
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    39. Klein NP, Fireman B, Goddard K, Zerbo O, Asher J, Zhou J, King J, Lewis N. Vaccine effectiveness of cell-culture relative to egg-based inactivated influenza vaccine during the 2017-18 influenza season. PLoS One. 2020; 15(2):e0229279. PMID: 32101582; PMCID: PMC7043803.
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    40. Hsiao A, Buck PO, Yee A, Hansen J, Lewis EM, Aukes LL, Yanni E, Bekkat-Berkani R, Schuind A, Klein NP. Retrospective study of the use of an influenza disease two-tiered classification system to characterize clinical severity in US children. Hum Vaccin Immunother. 2020 08 02; 16(8):1753-1761. PMID: 32078443; PMCID: PMC7482751.
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    41. Walter EB, Klein NP, Wodi AP, Rountree W, Todd CA, Wiesner A, Duffy J, Marquez PL, Broder KR. Fever After Influenza, Diphtheria-Tetanus-Acellular Pertussis, and Pneumococcal Vaccinations. Pediatrics. 2020 03; 145(3). PMID: 32029684; PMCID: PMC7055925.
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    42. King JP, Hanson KE, Donahue JG, Glanz JM, Klein NP, Naleway AL, DeStefano F, Weintraub E, Belongia EA. Survey of influenza vaccine knowledge, attitudes, and beliefs among pregnant women in the 2016-17 season. Vaccine. 2020 02 24; 38(9):2202-2208. PMID: 31992481; PMCID: PMC7869019.
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    43. Mohanty S, Joyce CM, Delamater PL, Klein NP, Salmon D, Omer SB, Buttenheim AM. Homeschooling parents in California: Attitudes, beliefs and behaviors associated with child's vaccination status. Vaccine. 2020 02 18; 38(8):1899-1905. PMID: 31982257; PMCID: PMC7446540.
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    44. Kachikis A, Eckert LO, Walker C, Bardají A, Varricchio F, Lipkind HS, Diouf K, Huang WT, Mataya R, Bittaye M, Cutland C, Boghossian NS, Mallett Moore T, McCall R, King J, Mundle S, Munoz FM, Rouse C, Gravett M, Katikaneni L, Ault K, Klein NP, Roberts DJ, Kochhar S, Chescheir N, Brighton Collaboration Chorioamnionitis Working Group. Chorioamnionitis: Case definition & guidelines for data collection, analysis, and presentation of immunization safety data. Vaccine. 2019 12 10; 37(52):7610-7622. PMID: 31783982; PMCID: PMC6891229.
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    45. Donahue JG, Kieke BA, Lewis EM, Weintraub ES, Hanson KE, McClure DL, Vickers ER, Gee J, Daley MF, DeStefano F, Hechter RC, Jackson LA, Klein NP, Naleway AL, Nelson JC, Belongia EA. Near Real-Time Surveillance to Assess the Safety of the 9-Valent Human Papillomavirus Vaccine. Pediatrics. 2019 12; 144(6). PMID: 31740498; PMCID: PMC7780202.
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    46. Zerbo O, Modaressi S, Goddard K, Lewis E, Bok K, Gans H, Klein NP. Parental risk factors for fever in their children 7-10 days after the first dose of measles-containing vaccines. Hum Vaccin Immunother. 2020 04 02; 16(4):875-880. PMID: 31584845; PMCID: PMC7227709.
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    47. Delamater PL, Buttenheim AM, Klein NP, Mohanty S, Salmon DA, Omer SB. Assessment of Exemptions From Vaccination in California, 2015 to 2027. Ann Intern Med. 2020 03 03; 172(5):362-363. PMID: 31683313; PMCID: PMC7446529.
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    48. Groom HC, Smith N, Irving SA, Koppolu P, Vazquez-Benitez G, Kharbanda EO, Daley MF, Donahue JG, Getahun D, Jackson LA, Klein NP, McCarthy NL, Nordin JD, Panagiotakopoulos L, Naleway AL. Uptake and safety of hepatitis A vaccination during pregnancy: A Vaccine Safety Datalink study. Vaccine. 2019 10 16; 37(44):6648-6655. PMID: 31548013; PMCID: PMC8082525.
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    49. Donahue JG, Kieke BA, King JP, Mascola MA, Shimabukuro TT, DeStefano F, Hanson KE, McClure DL, Olaiya O, Glanz JM, Hechter RC, Irving SA, Jackson LA, Klein NP, Naleway AL, Weintraub ES, Belongia EA. Inactivated influenza vaccine and spontaneous abortion in the Vaccine Safety Datalink in 2012-13, 2013-14, and 2014-15. Vaccine. 2019 10 16; 37(44):6673-6681. PMID: 31540812; PMCID: PMC6906603.
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    50. Klein NP, Bartlett J, Fireman B, Marks MA, Hansen J, Lewis E, Aukes L, Saddier P. Long-term effectiveness of zoster vaccine live for postherpetic neuralgia prevention. Vaccine. 2019 08 23; 37(36):5422-5427. PMID: 31301920.
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    51. Klein NP, Block SL, Essink B, Barbi S, Smolenov I, Keshavan P. Antibody persistence and booster response following MenACWY-CRM vaccination in children as assessed by two different assay methods. Vaccine. 2019 07 26; 37(32):4460-4467. PMID: 31279564.
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    52. Pingali SC, Delamater PL, Buttenheim AM, Salmon DA, Klein NP, Omer SB. Associations of Statewide Legislative and Administrative Interventions With Vaccination Status Among Kindergartners in California. JAMA. 2019 07 02; 322(1):49-56. PMID: 31265099; PMCID: PMC6613302.
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    53. Curran D, Andrew MK, Levin MJ, Turriani E, Matthews S, Fogarty C, Klein NP, Grupping K, Oostvogels L, Schmader KE. Evaluation of two frailty indices, with practical application in a vaccine clinical trial. Hum Vaccin Immunother. 2019; 15(12):2960-2968. PMID: 31157595; PMCID: PMC6930102.
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    54. Weinmann S, Naleway AL, Koppolu P, Baxter R, Belongia EA, Hambidge SJ, Irving SA, Jackson ML, Klein NP, Lewin B, Liles E, Marin M, Smith N, Weintraub E, Chun C. Incidence of Herpes Zoster Among Children: 2003-2014. Pediatrics. 2019 07; 144(1). PMID: 31182552; PMCID: PMC7748320.
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    55. Zerbo O, Bartlett J, Goddard K, Fireman B, Lewis E, Klein NP. Acellular Pertussis Vaccine Effectiveness Over Time. Pediatrics. 2019 07; 144(1). PMID: 31182549; PMCID: PMC6615519.
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    56. Delamater PL, Pingali SC, Buttenheim AM, Salmon DA, Klein NP, Omer SB. Elimination of Nonmedical Immunization Exemptions in California and School-Entry Vaccine Status. Pediatrics. 2019 06; 143(6). PMID: 31113831; PMCID: PMC6564056.
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    57. Hechter RC, Qian L, Tartof SY, Sy LS, Klein NP, Weintraub E, Mercado C, Naleway A, McLean HQ, Jacobsen SJ. Vaccine safety in HIV-infected adults within the Vaccine Safety Datalink Project. Vaccine. 2019 05 31; 37(25):3296-3302. PMID: 31064675; PMCID: PMC6538462.
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    58. Klein NP, Abu-Elyazeed R, Povey M, Macias Parra M, Diez-Domingo J, Ahonen A, Korhonen T, Tinoco JC, Weiner L, Marshall GS, Silas PE, Sarpong KO, Ramsey KP, Fling JA, Speicher D, Campos M, Munjal I, Peltier C, Vesikari T, Baccarini C, Caplanusi A, Gillard P, Carryn S, Henry O. Immunogenicity and Safety of a Measles-Mumps-Rubella Vaccine Administered as a First Dose to Children Aged 12 to 15 Months: A Phase III, Randomized, Noninferiority, Lot-to-Lot Consistency Study. J Pediatric Infect Dis Soc. 2019 Mar 08. PMID: 30849175.
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    59. Klein NP, Goddard K, Lewis E, Ross P, Gee J, DeStefano F, Baxter R. Long term risk of developing type 1 diabetes after HPV vaccination in males and females. Vaccine. 2019 Mar 28; 37(14):1938-1944. PMID: 30827738.
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    60. Robertson CA, Mercer M, Selmani A, Klein NP, Jeanfreau R, Greenberg DP. Safety and Immunogenicity of a Full-dose, Split-virion, Inactivated, Quadrivalent Influenza Vaccine in Healthy Children 6-35 Months of Age: A Randomized Controlled Clinical Trial. Pediatr Infect Dis J. 2019 Mar; 38(3):323-328. PMID: 30395011.
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    61. Thompson MG, Jackson ML, Regan A, Katz MA, Kwong JC, Ball SW, Simmonds K, Klein NP, Naleway A. Reply to Skowronski, De Serres and Orenstein. Clin Infect Dis. 2019 Feb 07. PMID: 30753401.
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    62. Naleway AL, Ball S, Kwong JC, Wyant BE, Katz MA, Regan AK, Russell ML, Klein NP, Chung H, Simmonds KA, Azziz-Baumgartner E, Feldman BS, Levy A, Fell DB, Drews SJ, Garg S, Effler P, Barda N, Irving SA, Shifflett P, Jackson ML, Thompson MG. Estimating Vaccine Effectiveness Against Hospitalized Influenza During Pregnancy: Multicountry Protocol for a Retrospective Cohort Study. JMIR Res Protoc. 2019 Jan 21; 8(1):e11333. PMID: 30664495.
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    63. McDonald P, Limaye RJ, Omer SB, Buttenheim AM, Mohanty S, Klein NP, Salmon DA. Exploring California's new law eliminating personal belief exemptions to childhood vaccines and vaccine decision-making among homeschooling mothers in California. Vaccine. 2019 Jan 29; 37(5):742-750. PMID: 30626531.
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    64. Winter K, Klein NP, Ackley S, Cherry JD. Comment on "The impact of past vaccination coverage and immunity on pertussis resurgence". Sci Transl Med. 2018 Dec 19; 10(472). PMID: 30567926.
      Citations:    
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    142. Hambidge SJ, Newcomer SR, Narwaney KJ, Glanz JM, Daley MF, Xu S, Shoup JA, Rowhani-Rahbar A, Klein NP, Lee GM, Nelson JC, Lugg M, Naleway AL, Nordin JD, Weintraub E, DeStefano F. Timely versus delayed early childhood vaccination and seizures. Pediatrics. 2014 Jun; 133(6):e1492-9. PMID: 24843064.
      Citations:    
    143. Hofstetter AM, Jakob K, Klein NP, Dekker CL, Edwards KM, Halsey NA, Baxter R, Williams SE, Graham PL, LaRussa P. Live vaccine use and safety in DiGeorge syndrome. Pediatrics. 2014 Apr; 133(4):e946-54. PMID: 24685951.
      Citations:    
    144. Daley MF, Yih WK, Glanz JM, Hambidge SJ, Narwaney KJ, Yin R, Li L, Nelson JC, Nordin JD, Klein NP, Jacobsen SJ, Weintraub E. Safety of diphtheria, tetanus, acellular pertussis and inactivated poliovirus (DTaP-IPV) vaccine. Vaccine. 2014 May 23; 32(25):3019-24. PMID: 24699471.
      Citations:    
    145. Naleway AL, Kurosky S, Henninger ML, Gold R, Nordin JD, Kharbanda EO, Irving S, Craig Cheetham T, Nakasato C, Glanz JM, Hambidge SJ, Davis RL, Klein NP, McCarthy NL, Weintraub E. Vaccinations given during pregnancy, 2002-2009: a descriptive study. Am J Prev Med. 2014 Feb; 46(2):150-7. PMID: 24439348.
      Citations:    
    146. Weintraub ES, Baggs J, Duffy J, Vellozzi C, Belongia EA, Irving S, Klein NP, Glanz JM, Jacobsen SJ, Naleway A, Jackson LA, DeStefano F. Risk of intussusception after monovalent rotavirus vaccination. N Engl J Med. 2014 Feb 06; 370(6):513-9. PMID: 24422678.
      Citations:    
    147. Rowhani-Rahbar A, Fireman B, Lewis E, Nordin J, Naleway A, Jacobsen SJ, Jackson LA, Tse A, Belongia EA, Hambidge SJ, Weintraub E, Baxter R, Klein NP. Effect of age on the risk of Fever and seizures following immunization with measles-containing vaccines in children. JAMA Pediatr. 2013 Dec; 167(12):1111-7. PMID: 24126936.
      Citations:    
    148. Payne DC, Baggs J, Zerr DM, Klein NP, Yih K, Glanz J, Curns AT, Weintraub E, Parashar UD. Protective association between rotavirus vaccination and childhood seizures in the year following vaccination in US children. Clin Infect Dis. 2014 Jan; 58(2):173-7. PMID: 24265355.
      Citations:    
    149. Klein NP, Ensor K, Jouve S, Northington R, Moscariello M, McGovern PC. Long-term immune responses to pneumococcal conjugate vaccines in children previously vaccinated with 7-valent pneumococcal conjugate vaccine. Pediatr Infect Dis J. 2013 Sep; 32(9):990-7. PMID: 24008739.
      Citations:    
    150. Baxter R, Bartlett J, Rowhani-Rahbar A, Fireman B, Klein NP. Effectiveness of pertussis vaccines for adolescents and adults: case-control study. BMJ. 2013 Jul 17; 347:f4249. PMID: 23873919.
      Citations:    
    151. Newcomer SR, Hambidge SJ, McClure DL, Daley MF, Klein NP, Glanz JM. Factors that may explain observed associations between trivalent influenza vaccination and gastrointestinal illness in young children. Vaccine. 2013 Aug 20; 31(37):3894-8. PMID: 23831326.
      Citations:    
    152. Camenga DR, Dunne EF, Desai MM, Gee J, Markowitz LE, Desiliva A, Klein NP. Incidence of genital warts in adolescents and young adults in an integrated health care delivery system in the United States before human papillomavirus vaccine recommendations. Sex Transm Dis. 2013 Jul; 40(7):534-8. PMID: 23965766.
      Citations:    
    153. Klein NP, Baine Y, Bianco V, Lestrate PR, Naz A, Blatter M, Friedland LR, Miller JM. One or two doses of quadrivalent meningococcal serogroups A, C, W-135 and Y tetanus toxoid conjugate vaccine is immunogenic in 9- to 12-month-old children. Pediatr Infect Dis J. 2013 Jul; 32(7):760-7. PMID: 23348814.
      Citations:    
    154. Klein NP, Bartlett J, Fireman B, Rowhani-Rahbar A, Baxter R. Comparative effectiveness of acellular versus whole-cell pertussis vaccines in teenagers. Pediatrics. 2013 Jun; 131(6):e1716-22. PMID: 23690518.
      Citations:    
    155. Baxter R, Klein NP. Kaiser Permanente Vaccine Study Center: Highlights of 2009-2012. Vaccines (Basel). 2013 Apr 25; 1(2):139-53. PMID: 26343963.
      Citations:    
    156. Baxter R, Bakshi N, Fireman B, Lewis E, Ray P, Vellozzi C, Klein NP. Lack of association of Guillain-Barré syndrome with vaccinations. Clin Infect Dis. 2013 Jul; 57(2):197-204. PMID: 23580737.
      Citations:    
    157. Surie D, Dunne EF, Naleway AL, Weinmann S, Klein NP, Baxter R, Hutchins K, Gee J, Markowitz L. Cervical intraepithelial neoplasia grade 3 and adenocarcinoma in situ: comparison of ICD-9 codes and pathology results--Kaiser Permanente, United States, 2000-2005. Cancer Epidemiol Biomarkers Prev. 2013 Jun; 22(6):1129-32. PMID: 23563889.
      Citations:    
    158. Williams SE, Edwards KM, Baxter RP, LaRussa PS, Halsey NA, Dekker CL, Vellozzi C, Marchant CD, Donofrio PD, Reimschisel TE, Berger M, Gidudu JF, Klein NP. Comprehensive assessment of serious adverse events following immunization by health care providers. J Pediatr. 2013 Jun; 162(6):1276-81, 1281.e1. PMID: 23452584.
      Citations:    
    159. Pahud BA, Williams SE, Dekker CL, Halsey N, Larussa P, Baxter RP, Klein NP, Marchant CD, Sparks RC, Jakob K, Aukes L, Swope S, Barnett E, Lewis P, Berger M, Dreskin SC, Donofrio PD, Sejvar JJ, Slade BA, Gidudu J, Vellozzi C, Edwards KM. Clinical assessment of serious adverse events in children receiving 2009 H1N1 vaccination. Pediatr Infect Dis J. 2013 Feb; 32(2):163-8. PMID: 23334340.
      Citations:    
    160. Dunne EF, Klein NP, Naleway AL, Baxter R, Weinmann S, Riedlinger K, Fetterman B, Steinau M, Scarbrough MZ, Gee J, Markowitz LE, Unger ER. Prevalence of HPV types in cervical specimens from an integrated healthcare delivery system: baseline assessment to measure HPV vaccine impact. Cancer Causes Control. 2013 Feb; 24(2):403-7. PMID: 23292130.
      Citations:    
    161. Nelson JC, Yu O, Dominguez-Islas CP, Cook AJ, Peterson D, Greene SK, Yih WK, Daley MF, Jacobsen SJ, Klein NP, Weintraub ES, Broder KR, Jackson LA. Adapting group sequential methods to observational postlicensure vaccine safety surveillance: results of a pentavalent combination DTaP-IPV-Hib vaccine safety study. Am J Epidemiol. 2013 Jan 15; 177(2):131-41. PMID: 23292957.
      Citations:    
    162. Klein NP, Hansen J, Chao C, Velicer C, Emery M, Slezak J, Lewis N, Deosaransingh K, Sy L, Ackerson B, Cheetham TC, Liaw KL, Takhar H, Jacobsen SJ. Safety of quadrivalent human papillomavirus vaccine administered routinely to females. Arch Pediatr Adolesc Med. 2012 Dec; 166(12):1140-8. PMID: 23027469.
      Citations:    
    163. Loughlin AM, Marchant CD, Adams W, Barnett E, Baxter R, Black S, Casey C, Dekker C, Edwards KM, Klein J, Klein NP, LaRussa P, Sparks R, Jakob K. Causality assessment of adverse events reported to the Vaccine Adverse Event Reporting System (VAERS). Vaccine. 2012 Nov 26; 30(50):7253-9. PMID: 23063829.
      Citations:    
    164. Klein NP, Bartlett J, Rowhani-Rahbar A, Fireman B, Baxter R. Waning protection after fifth dose of acellular pertussis vaccine in children. N Engl J Med. 2012 Sep 13; 367(11):1012-9. PMID: 22970945.
      Citations:    
    165. Rowhani-Rahbar A, Klein NP, Baxter R. Assessing the safety of influenza vaccination in specific populations: children and the elderly. Expert Rev Vaccines. 2012 Aug; 11(8):973-84. PMID: 23002978.
      Citations:    
    166. Blatter MM, Klein NP, Shepard JS, Leonardi M, Shapiro S, Schear M, Mufson MA, Martin JM, Varman M, Grogg S, London A, Cambron P, Douha M, Nicholson O, da Costa C, Innis BL. Immunogenicity and safety of two tetravalent (measles, mumps, rubella, varicella) vaccines coadministered with hepatitis a and pneumococcal conjugate vaccines to children twelve to fourteen months of age. Pediatr Infect Dis J. 2012 Aug; 31(8):e133-40. PMID: 22622699.
      Citations:    
    167. Rowhani-Rahbar A, Klein NP, Dekker CL, Edwards KM, Marchant CD, Vellozzi C, Fireman B, Sejvar JJ, Halsey NA, Baxter R. Biologically plausible and evidence-based risk intervals in immunization safety research. Vaccine. 2012 Dec 17; 31(1):271-7. PMID: 22835735.
      Citations:    
    168. Rowhani-Rahbar A, Baxter R, Rasgon B, Ray P, Black S, Klein JO, Klein NP. Epidemiologic and clinical features of Bell's palsy among children in Northern California. Neuroepidemiology. 2012; 38(4):252-8. PMID: 22678408.
      Citations:    
    169. Jacobsen SJ, Sy LS, Ackerson BK, Chao CR, Slezak JM, Cheetham TC, Takhar HS, Velicer CM, Hansen J, Klein NP. An unmasking phenomenon in an observational post-licensure safety study of adolescent girls and young women. Vaccine. 2012 Jun 29; 30(31):4585-7. PMID: 22580356.
      Citations:    
    170. Halsey NA, Edwards KM, Dekker CL, Klein NP, Baxter R, Larussa P, Marchant C, Slade B, Vellozzi C. Algorithm to assess causality after individual adverse events following immunizations. Vaccine. 2012 Aug 24; 30(39):5791-8. PMID: 22507656.
      Citations:    
    171. Klein NP, Shepard J, Bedell L, Odrljin T, Dull P. Immunogenicity and safety of a quadrivalent meningococcal conjugate vaccine administered concomitantly with measles, mumps, rubella, varicella vaccine in healthy toddlers. Vaccine. 2012 Jun 06; 30(26):3929-36. PMID: 22504039.
      Citations:    
    172. Klein NP, Lewis E, Baxter R, Weintraub E, Glanz J, Naleway A, Jackson LA, Nordin J, Lieu T, Belongia EA, Fireman B. Measles-containing vaccines and febrile seizures in children age 4 to 6 years. Pediatrics. 2012 May; 129(5):809-14. PMID: 22473362.
      Citations:    
    173. Chatterjee A, O'Keefe C, Varman M, Klein NP, Luber S, Tomovici A, Noriega F. Comparative immunogenicity and safety of different multivalent component pertussis vaccine formulations and a 5-component acellular pertussis vaccine in infants and toddlers: a randomized, controlled, open-label, multicenter study. Vaccine. 2012 May 14; 30(23):3360-8. PMID: 22475857.
      Citations:    
    174. Rowhani-Rahbar A, Klein NP, Lewis N, Fireman B, Ray P, Rasgon B, Black S, Klein JO, Baxter R. Immunization and Bell's palsy in children: a case-centered analysis. Am J Epidemiol. 2012 May 01; 175(9):878-85. PMID: 22411861.
      Citations:    
    175. Shui IM, Baggs J, Patel M, Parashar UD, Rett M, Belongia EA, Hambidge SJ, Glanz JM, Klein NP, Weintraub E. Risk of intussusception following administration of a pentavalent rotavirus vaccine in US infants. JAMA. 2012 Feb 08; 307(6):598-604. PMID: 22318281.
      Citations:    
    176. Baxter R, Lewis N, Bakshi N, Vellozzi C, Klein NP. Recurrent Guillain-Barre syndrome following vaccination. Clin Infect Dis. 2012 Mar; 54(6):800-4. PMID: 22267712.
      Citations:    
    177. Klein NP, Reisinger KS, Johnston W, Odrljin T, Gill CJ, Bedell L, Dull P. Safety and immunogenicity of a novel quadrivalent meningococcal CRM-conjugate vaccine given concomitantly with routine vaccinations in infants. Pediatr Infect Dis J. 2012 Jan; 31(1):64-71. PMID: 22094635.
      Citations:    
    178. Chao C, Klein NP, Velicer CM, Sy LS, Slezak JM, Takhar H, Ackerson B, Cheetham TC, Hansen J, Deosaransingh K, Emery M, Liaw KL, Jacobsen SJ. Surveillance of autoimmune conditions following routine use of quadrivalent human papillomavirus vaccine. J Intern Med. 2012 Feb; 271(2):193-203. PMID: 21973261.
      Citations:    
    179. Klein NP, Weston WM, Kuriyakose S, Kolhe D, Howe B, Friedland LR, Van Der Meeren O. An open-label, randomized, multi-center study of the immunogenicity and safety of DTaP-IPV (Kinrix™) co-administered with MMR vaccine with or without varicella vaccine in healthy pre-school age children. Vaccine. 2012 Jan 11; 30(3):668-74. PMID: 22064267.
      Citations:    
    180. Gee J, Naleway A, Shui I, Baggs J, Yin R, Li R, Kulldorff M, Lewis E, Fireman B, Daley MF, Klein NP, Weintraub ES. Monitoring the safety of quadrivalent human papillomavirus vaccine: findings from the Vaccine Safety Datalink. Vaccine. 2011 Oct 26; 29(46):8279-84. PMID: 21907257.
      Citations:    
    181. Williams SE, Pahud BA, Vellozzi C, Donofrio PD, Dekker CL, Halsey N, Klein NP, Baxter RP, Marchant CD, Larussa PS, Barnett ED, Tokars JI, McGeeney BE, Sparks RC, Aukes LL, Jakob K, Coronel S, Sejvar JJ, Slade BA, Edwards KM. Causality assessment of serious neurologic adverse events following 2009 H1N1 vaccination. Vaccine. 2011 Oct 26; 29(46):8302-8. PMID: 21893148.
      Citations:    
    182. Trofa AF, Klein NP, Paul IM, Michaels MG, Goessler M, Chandrasekaran V, Blatter M. Immunogenicity and safety of an inactivated hepatitis A vaccine when coadministered with Diphtheria-tetanus-acellular pertussis and haemophilus influenzae type B vaccines in children 15 months of age. Pediatr Infect Dis J. 2011 Sep; 30(9):e164-9. PMID: 21494175.
      Citations:    
    183. Navar-Boggan AM, Halsey NA, Escobar GJ, Golden WC, Klein NP. Underimmunization at discharge from the neonatal intensive care unit. J Perinatol. 2012 May; 32(5):363-7. PMID: 21836550.
      Citations:    
    184. Glanz JM, Newcomer SR, Hambidge SJ, Daley MF, Narwaney KJ, Xu S, Lee GM, Baggs J, Klein NP, Nordin JD, Naleway AL, Belongia EA, Weintraub ES. Safety of trivalent inactivated influenza vaccine in children aged 24 to 59 months in the vaccine safety datalink. Arch Pediatr Adolesc Med. 2011 Aug; 165(8):749-55. PMID: 21810637.
      Citations:    
    185. Williams SE, Klein NP, Halsey N, Dekker CL, Baxter RP, Marchant CD, LaRussa PS, Sparks RC, Tokars JI, Pahud BA, Aukes L, Jakob K, Coronel S, Choi H, Slade BA, Edwards KM. Overview of the Clinical Consult Case Review of adverse events following immunization: Clinical Immunization Safety Assessment (CISA) network 2004-2009. Vaccine. 2011 Sep 16; 29(40):6920-7. PMID: 21801776.
      Citations:    
    186. Ray P, Black S, Shinefield H, Dillon A, Carpenter D, Lewis E, Ross P, Chen RT, Klein NP, Baxter R. Risk of rheumatoid arthritis following vaccination with tetanus, influenza and hepatitis B vaccines among persons 15-59 years of age. Vaccine. 2011 Sep 02; 29(38):6592-7. PMID: 21763385.
      Citations:    
    187. Klein NP, Gidudu J, Qiang Y, Pahud B, Rowhani-Rahbar A, Baxter R, Dekker CL, Edwards KM, Halsey NA, Larussa P, Marchant C, Tokars JI, Destefano F. Developing the next generation of vaccinologists. Vaccine. 2011 Nov 21; 29(50):9296-7. PMID: 21510995.
      Citations:    
    188. LaRussa PS, Edwards KM, Dekker CL, Klein NP, Halsey NA, Marchant C, Baxter R, Engler RJ, Kissner J, Slade BA. Understanding the role of human variation in vaccine adverse events: the Clinical Immunization Safety Assessment Network. Pediatrics. 2011 May; 127 Suppl 1:S65-73. PMID: 21502239.
      Citations:    
    189. Baggs J, Gee J, Lewis E, Fowler G, Benson P, Lieu T, Naleway A, Klein NP, Baxter R, Belongia E, Glanz J, Hambidge SJ, Jacobsen SJ, Jackson L, Nordin J, Weintraub E. The Vaccine Safety Datalink: a model for monitoring immunization safety. Pediatrics. 2011 May; 127 Suppl 1:S45-53. PMID: 21502240.
      Citations:    
    190. Vannice KS, Salmon DA, Shui I, Omer SB, Kissner J, Edwards KM, Sparks R, Dekker CL, Klein NP, Gust DA. Attitudes and beliefs of parents concerned about vaccines: impact of timing of immunization information. Pediatrics. 2011 May; 127 Suppl 1:S120-6. PMID: 21502250.
      Citations:    
    191. Yih WK, Kulldorff M, Fireman BH, Shui IM, Lewis EM, Klein NP, Baggs J, Weintraub ES, Belongia EA, Naleway A, Gee J, Platt R, Lieu TA. Active surveillance for adverse events: the experience of the Vaccine Safety Datalink project. Pediatrics. 2011 May; 127 Suppl 1:S54-64. PMID: 21502252.
      Citations:    
    192. Klein NP, Aukes L, Lee J, Fireman B, Shapira SK, Slade B, Baxter R, Summar M. Evaluation of immunization rates and safety among children with inborn errors of metabolism. Pediatrics. 2011 May; 127(5):e1139-46. PMID: 21482602.
      Citations:    
    193. Klein NP. Vaccine safety in special populations. Hum Vaccin. 2011 Feb; 7(2):269-71. PMID: 21307654.
      Citations:    
    194. Halperin SA, Gupta A, Jeanfreau R, Klein NP, Reisinger K, Walter E, Bedell L, Gill C, Dull PM. Comparison of the safety and immunogenicity of an investigational and a licensed quadrivalent meningococcal conjugate vaccine in children 2-10 years of age. Vaccine. 2010 Nov 23; 28(50):7865-72. PMID: 20943209.
      Citations:    
    195. Cochran LW, Black S, Klein NP, Dekker CL, Lewis E, Reingold AL. Vaccine effectiveness against laboratory-confirmed influenza in infants: A matched case control study. Hum Vaccin. 2010 Sep 23; 6(9). PMID: 20855940.
      Citations:    
    196. Huang WT, Gargiullo PM, Broder KR, Weintraub ES, Iskander JK, Klein NP, Baggs JM. Lack of association between acellular pertussis vaccine and seizures in early childhood. Pediatrics. 2010 Aug; 126(2):263-9. PMID: 20643726.
      Citations:    
    197. Klein NP, Hansen J, Lewis E, Lyon L, Nguyen B, Black S, Weston WM, Wu S, Li P, Howe B, Friedland LR. Post-marketing safety evaluation of a tetanus toxoid, reduced diphtheria toxoid and 3-component acellular pertussis vaccine administered to a cohort of adolescents in a United States health maintenance organization. Pediatr Infect Dis J. 2010 Jul; 29(7):613-7. PMID: 20190673.
      Citations:    
    198. Klein NP, Fireman B, Yih WK, Lewis E, Kulldorff M, Ray P, Baxter R, Hambidge S, Nordin J, Naleway A, Belongia EA, Lieu T, Baggs J, Weintraub E. Measles-mumps-rubella-varicella combination vaccine and the risk of febrile seizures. Pediatrics. 2010 Jul; 126(1):e1-8. PMID: 20587679.
      Citations:    
    199. Navar-Boggan AM, Halsey NA, Golden WC, Escobar GJ, Massolo M, Klein NP. Risk of fever and sepsis evaluations after routine immunizations in the neonatal intensive care unit. J Perinatol. 2010 Sep; 30(9):604-9. PMID: 20182438.
      Citations:    
    200. Klein NP, Gans HA, Sung P, Yasukawa LL, Johnson J, Sarafanov A, Chumakov K, Hansen J, Black S, Dekker CL. Preterm infants' T cell responses to inactivated poliovirus vaccine. J Infect Dis. 2010 Jan 15; 201(2):214-22. PMID: 20017631.
      Citations:    
    201. Belongia EA, Irving SA, Shui IM, Kulldorff M, Lewis E, Yin R, Lieu TA, Weintraub E, Yih WK, Li R, Baggs J. Real-time surveillance to assess risk of intussusception and other adverse events after pentavalent, bovine-derived rotavirus vaccine. Pediatr Infect Dis J. 2010 Jan; 29(1):1-5. PMID: 19907356.
      Citations:    
    202. Klein NP, Ray P, Carpenter D, Hansen J, Lewis E, Fireman B, Black S, Galindo C, Schmidt J, Baxter R. Rates of autoimmune diseases in Kaiser Permanente for use in vaccine adverse event safety studies. Vaccine. 2010 Jan 22; 28(4):1062-8. PMID: 19896453.
      Citations:    
    203. Black S, Klein NP, Shah J, Bedell L, Karsten A, Dull PM. Immunogenicity and tolerability of a quadrivalent meningococcal glycoconjugate vaccine in children 2-10 years of age. Vaccine. 2010 Jan 08; 28(3):657-63. PMID: 19895922.
      Citations:    
    204. Klein NP, Kissner J, Aguirre A, Sparks R, Campbell S, Edwards KM, Dekker CL, Shui I, Gust DA. Differential maternal responses to a newly developed vaccine information pamphlet. Vaccine. 2009 Dec 11; 28(2):323-8. PMID: 19879994.
      Citations:    
    205. Nelson JC, Bittner RC, Bounds L, Zhao S, Baggs J, Donahue JG, Hambidge SJ, Jacobsen SJ, Klein NP, Naleway AL, Zangwill KM, Jackson LA. Compliance with multiple-dose vaccine schedules among older children, adolescents, and adults: results from a vaccine safety datalink study. Am J Public Health. 2009 Oct; 99 Suppl 2:S389-97. PMID: 19797753.
      Citations:    
    206. Klein NP, Edwards KM, Sparks RC, Dekker CL. Recurrent sterile abscesses following aluminium adjuvant-containing vaccines. BMJ Case Rep. 2009; 2009. PMID: 21686546.
      Citations:    
    207. Donahue JG, Kieke BA, Yih WK, Berger NR, McCauley JS, Baggs J, Zangwill KM, Baxter R, Eriksen EM, Glanz JM, Hambidge SJ, Klein NP, Lewis EM, Marcy SM, Naleway AL, Nordin JD, Ray P, Belongia EA. Varicella vaccination and ischemic stroke in children: is there an association? Pediatrics. 2009 Feb; 123(2):e228-34. PMID: 19171574.
      Citations:    
    208. Weston WM, Klein NP. Kinrix: a new combination DTaP-IPV vaccine for children aged 4-6 years. Expert Rev Vaccines. 2008 Nov; 7(9):1309-20. PMID: 18980534.
      Citations:    
    209. Black S, Friedland LR, Ensor K, Weston WM, Howe B, Klein NP. Diphtheria-tetanus-acellular pertussis and inactivated poliovirus vaccines given separately or combined for booster dosing at 4-6 years of age. Pediatr Infect Dis J. 2008 Apr; 27(4):341-6. PMID: 18316985.
      Citations:    
    210. Klein NP, Massolo ML, Greene J, Dekker CL, Black S, Escobar GJ. Risk factors for developing apnea after immunization in the neonatal intensive care unit. Pediatrics. 2008 Mar; 121(3):463-9. PMID: 18310193.
      Citations:    
    211. Black S, France EK, Isaacman D, Bracken L, Lewis E, Hansen J, Fireman B, Austrian R, Graepel J, Gray S, Klein NP. Surveillance for invasive pneumococcal disease during 2000-2005 in a population of children who received 7-valent pneumococcal conjugate vaccine. Pediatr Infect Dis J. 2007 Sep; 26(9):771-7. PMID: 17721369.
      Citations:    
    212. Klein NP, Fireman B, Enright A, Ray P, Black S, Dekker CL. A role for genetics in the immune response to the varicella vaccine. Pediatr Infect Dis J. 2007 Apr; 26(4):300-5. PMID: 17414391.
      Citations:    
    213. Klein NP, Holmes TH, Sharp MA, Heineman TC, Schleiss MR, Bernstein DI, Kemble G, Arvin AM, Dekker CL. Variability and gender differences in memory T cell immunity to varicella-zoster virus in healthy adults. Vaccine. 2006 Aug 14; 24(33-34):5913-8. PMID: 16759768.
      Citations:    
    214. Klein NP, Bouchard MJ, Wang LH, Kobarg C, Schneider RJ. Src kinases involved in hepatitis B virus replication. EMBO J. 1999 Sep 15; 18(18):5019-27. PMID: 10487754.
      Citations:    
    215. Klein NP, Schneider RJ. Activation of Src family kinases by hepatitis B virus HBx protein and coupled signaling to Ras. Mol Cell Biol. 1997 Nov; 17(11):6427-36. PMID: 9343405; PMCID: PMC232495.
      Citations:    
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