18 Years - VISION and IVY Networks, September 2023-January 2024. 

MMWR: Morbidity and Mortality Weekly Report. 2024

Clinical epidemiology and risk factors for critical outcomes among vaccinated and unvaccinated adults hospitalized with COVID-19-VISION Network, 10 states, June 2021-March 2023. 

Clinical Infectious Diseases. 2024

Risk of COVID-19 hospitalization and protection associated with mRNA vaccination among US adults with psychiatric disorders. 

Influenza and other respiratory viruses. 2024

Vaccine effectiveness against pediatric influenza-A-associated urgent care, emergency department, and hospital encounters during the 2022-2023 season: VISION Network. 

Clinical Infectious Diseases. 2024

Accuracy of COVID-19-like illness diagnoses in electronic health record data: retrospective cohort study. 

JMIR formative research. 2023

Active postlicensure safety surveillance for recombinant zoster vaccine using electronic health record data. 

American Journal of Epidemiology. 2023

Effectiveness of BNT162b2 COVID-19 vaccination in children and adolescents. 

Pediatrics. 2023

Effectiveness of COVID-19 vaccines at preventing emergency department or urgent care encounters and hospitalizations among immunocompromised adults: an observational study of real-world data across 10 US states from August-December 2021. 

Vaccine. 2023

Estimates of bivalent mRNA vaccine durability in preventing COVID-19-associated hospitalization and critical illness among adults with and without immunocompromising conditions - VISION Network, September 2022-April 2023. 

American Journal of Transplantation. 2023

Estimation of COVID-19 mRNA vaccine effectiveness and COVID-19 illness and severity by vaccination status during Omicron BA.4 and BA.5 sublineage periods. 

JAMA network open. 2023

Impact of accounting for correlation between COVID-19 and influenza vaccination in a COVID-19 vaccine effectiveness evaluation using a test-negative design. 

Vaccine. 2023

Influenza vaccination among pregnant people before and during the coronavirus disease 2019 (COVID-19) pandemic. 

Obstetrics and Gynecology. 2023

Influenza vaccination among pregnant women: self-report compared with vaccination data from electronic health records, 2018-2020 influenza seasons. 

Public Health Reports. 2023

Influenza vaccination coverage among persons ages six months and older in the Vaccine Safety Datalink in the 2017-18 through 2022-23 influenza seasons. 

Vaccine. 2023

Medically attended acute adverse events in pregnant people after coronavirus disease 2019 (COVID-19) booster vaccination. 

Obstetrics and Gynecology. 2023

Number needed to vaccinate with a COVID-19 booster to prevent a COVID-19-associated hospitalization during SARS-CoV-2 Omicron BA.1 variant predominance, December 2021-February 2022, VISION Network: a retrospective cohort study. 

Lancet Reg Health Am. 2023

Patient and epidemiological factors associated with influenza testing in hospitalized adults with acute respiratory illnesses, 2016-2017 to 2019-2020. 

Open forum infectious diseases. 2023

Protection from COVID-19 mRNA vaccination and prior SARS-CoV-2 infection against COVID-19-associated encounters in adults during Delta and Omicron predominance. 

Journal of Infectious Diseases. 2023

Protection of two and three mRNA vaccine doses against severe outcomes among adults hospitalized with COVID-19--VISION Network, August 2021 to March 2022. 

Journal of Infectious Diseases. 2023

Racial and ethnic disparities in influenza vaccination coverage among pregnant women in the United States: the contribution of vaccine-related attitudes. 

Preventive Medicine. 2023

Relationships between social vulnerability and coronavirus disease 2019 vaccination coverage and vaccine effectiveness. 

Clinical Infectious Diseases. 2023

Simultaneous administration of mRNA COVID-19 bivalent booster and influenza vaccines. 

Vaccine. 2023

Tdap vaccination during pregnancy and risk of chorioamnionitis and related infant outcomes. 

Vaccine. 2023

Vaccine effectiveness against influenza-associated urgent care, emergency department, and hospital encounters during the 2021-2022 season, VISION Network. 

Journal of Infectious Diseases. 2023

Early estimates of bivalent mRNA vaccine effectiveness in preventing COVID-19-associated emergency department or urgent care encounters and hospitalizations among immunocompetent adults - VISION Network, nine states, September-November 2022. 

MMWR: Morbidity and Mortality Weekly Report. 2022

Effectiveness of 2, 3, and 4 COVID-19 mRNA vaccine doses among immunocompetent adults during periods when SARS-CoV-2 Omicron BA.1 and BA.2/BA.2.12.1 sublineages predominated - VISION Network, 10 states, December 2021-June 2022. 

MMWR: Morbidity and Mortality Weekly Report. 2022

Effectiveness of COVID-19 Pfizer-BioNTech BNT162b2 mRNA vaccination in preventing COVID-19-associated emergency department and urgent care encounters and hospitalizations among nonimmunocompromised children and adolescents aged 5-17 years - VISION Network, 10 states, April 2021-January 2022. 

MMWR: Morbidity and Mortality Weekly Report. 2022

Effectiveness of COVID-19 mRNA vaccines against COVID-19-associated hospitalizations among immunocompromised adults during SARS-CoV-2 Omicron predominance - VISION Network, 10 states, December 2021-August 2022. 

MMWR: Morbidity and Mortality Weekly Report. 2022

Effectiveness of a third dose of mRNA vaccines against COVID-19-associated emergency department and urgent care encounters and hospitalizations among adults during oeriods of Delta and Omicron variant predominance - VISION Network, 10 states, August 2021-January 2022. 

MMWR: Morbidity and Mortality Weekly Report. 2022

Effectiveness of homologous and heterologous COVID-19 booster doses following 1 Ad.26.COV2.S (Janssen [Johnson & Johnson]) vaccine dose against COVID-19-associated emergency department and urgent care encounters and hospitalizations among adults - VISION Network, 10 states, December 2021-March 2022. 

MMWR: Morbidity and Mortality Weekly Report. 2022

Effectiveness of two-dose vaccination with mRNA COVID-19 vaccines against COVID-19-associated hospitalizations among immunocompromised adults-nine states, January-September 2021. 

American Journal of Transplantation. 2022

Estimation of COVID-19 mRNA vaccine effectiveness against medically attended COVID-19 in pregnancy during periods of Delta and Omicron variant predominance in the United States. 

JAMA network open. 2022

Evaluation of acute adverse events after Covid-19 vaccination during pregnancy. 

New England Journal of Medicine. 2022

Monitoring vaccine safety using the vaccine safety Datalink: assessing capacity to integrate data from Immunization Information systems. 

Vaccine. 2022

Relative risks of COVID-19-associated hospitalizations and clinical outcomes by age and race/ethnicity-March 2020-March 2021. 

Open forum infectious diseases. 2022

Risk of myocarditis and pericarditis following BNT162b2 and mRNA-1273 COVID-19 vaccination. 

Vaccine. 2022

Safety of COVID-19 vaccination in United States children ages 5 to 11 years. 

Pediatrics. 2022

Travelers and travel vaccines at six health care systems in the Vaccine Safety Datalink. 

Vaccine. 2022

Waning 2-dose and 3-dose effectiveness of mRNA vaccines against COVID-19-associated emergency department and urgent care encounters and hospitalizations among adults during periods of Delta and Omicron variant predominance - VISION Network, 10 states, August 2021-January 2022. 

MMWR: Morbidity and Mortality Weekly Report. 2022

Waning of vaccine effectiveness against moderate and severe covid-19 among adults in the US from the VISION network: test negative, case-control study. 

BMJ (Clinical research ed.). 2022

Association of inadvertent 9-valent human papillomavirus vaccine in pregnancy with spontaneous abortion and adverse birth outcomes. 

JAMA network open. 2021

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: Morbidity and Mortality Weekly Report. 2021

COVID-19 vaccination coverage among pregnant women during pregnancy - eight integrated health care organizations, United States, December 14, 2020-May 8, 2021. 

MMWR: Morbidity and Mortality Weekly Report. 2021

Developing algorithms for identifying major structural birth defects using automated electronic health data. 

Pharmacoepidemiology and Drug Safety. 2021

Effectiveness of 2-dose vaccination with mRNA COVID-19 vaccines against COVID-19-associated hospitalizations among immunocompromised adults - nine states, January-September 2021. 

MMWR: Morbidity and Mortality Weekly Report. 2021

Effectiveness of Covid-19 vaccines in ambulatory and inpatient care settings. 

New England Journal of Medicine. 2021

Incidence of pediatric inflammatory bowel disease within the Vaccine Safety Datalink network and evaluation of association with rotavirus vaccination. 

Vaccine. 2021

Interim estimates of COVID-19 vaccine effectiveness against COVID-19-associated emergency department or urgent care clinic encounters and hospitalizations among adults during SARS-CoV-2 B.1.617.2 (Delta) variant predominance - nine states, June-August 2021. 

MMWR: Morbidity and Mortality Weekly Report. 2021

Laboratory-confirmed COVID-19 among adults hospitalized with COVID-19-like illness with infection-induced or mRNA vaccine-induced SARS-CoV-2 immunity - nine states, January-September 2021. 

MMWR: Morbidity and Mortality Weekly Report. 2021

Spontaneous abortion following COVID-19 vaccination during pregnancy. 

JAMA. 2021

Surveillance for adverse events after COVID-19 mRNA vaccination. 

JAMA. 2021

Vaccine Safety Datalink infrastructure enhancements for evaluating the safety of maternal vaccination. 

Therapeutic advances in drug safety. 2021

Evaluating the association of stillbirths after maternal vaccination in the Vaccine Safety Datalink. 

Obstetrics and Gynecology. 2020

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: Morbidity and Mortality Weekly Report. 2020

Similar relative risks of seizures following measles containing vaccination in children born preterm compared to full-term without previous seizures or seizure-related disorders. 

Vaccine. 2019

Uptake and safety of hepatitis A vaccination during pregnancy: a Vaccine Safety Datalink study. 

Vaccine. 2019

2015-2016 Vaccine effectiveness of live attenuated and inactivated influenza vaccines in children in the United States. 

Clinical Infectious Diseases. 2018

Infant hospitalizations and mortality after maternal vaccination. 

Pediatrics. 2018

Risk of spontaneous abortion after inadvertent human papillomavirus vaccination in pregnancy. 

Obstetrics and Gynecology. 2018

The safety of live attenuated influenza vaccine in children and adolescents 2 through 17 years of age: a Vaccine Safety Datalink study. 

Pharmacoepidemiology and Drug Safety. 2018

Uptake and safety of Hepatitis B vaccination during pregnancy: a Vaccine Safety Datalink study. 

Vaccine. 2018

Febrile seizure risk after vaccination in children one to five months of age. 

Pediatric Neurology. 2017

First trimester influenza vaccination and risks for major structural birth defects in offspring. 

Journal of Pediatrics. 2017

Identifying birth defects in automated data sources in the Vaccine Safety Datalink. 

Pharmacoepidemiology and Drug Safety. 2017

Live attenuated influenza vaccine use and safety in children and adults with asthma. 

Annals of Allergy, Asthma, and Immunology. 2017

Maternal Tdap vaccination and risk of infant morbidity. 

Vaccine. 2017

Maternal and infant outcomes after human papillomavirus vaccination in the periconceptional period or during pregnancy. 

Obstetrics and Gynecology. 2017

Rates and risk factors associated with hospitalization for pneumonia with ICU admission among adults. 

BMC Pulmonary Medicine. 2017

Febrile seizure risk after vaccination in children 6 to 23 months. 

Pediatrics. 2016

Influenza vaccination during pregnancy: influenza seasons 2002-2012, Vaccine Safety Datalink. 

American Journal of Preventive Medicine. 2016

Maternal Tdap vaccination: coverage and acute safety outcomes in the vaccine safety datalink, 2007-2013. 

Vaccine. 2016

Risk of preterm or small-for-gestational-age birth after influenza vaccination during pregnancy: caveats when conducting retrospective observational studies. 

American Journal of Epidemiology. 2016

Association of Tdap vaccination with acute events and adverse birth outcomes among pregnant women with prior tetanus-containing immunizations. 

JAMA. 2015

Childhood vaccines and Kawasaki disease, Vaccine Safety Datalink, 1996-2006. 

Vaccine. 2015

Safety of measles-containing vaccines in 1-year-old children. 

Pediatrics. 2015

Safety of tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis and influenza vaccinations in pregnancy. 

Obstetrics and Gynecology. 2015

Absence of associations between influenza vaccines and increased risks of seizures, Guillain-Barre syndrome, encephalitis, or anaphylaxis in the 2012-2013 season. 

Pharmacoepidemiology and Drug Safety. 2014

Evaluation of the association of maternal pertussis vaccination with obstetric events and birth outcomes. 

JAMA. 2014

Monovalent H1N1 influenza vaccine safety in pregnant women, risks for acute adverse events. 

Vaccine. 2014

Receipt of pertussis vaccine during pregnancy across 7 Vaccine Safety Datalink Sites. 

Preventive Medicine. 2014

Timely versus delayed early childhood vaccination and seizures. 

Pediatrics. 2014

Vaccinations given during pregnancy, 2002-2009: a descriptive study. 

American Journal of Preventive Medicine. 2014

A population-based cohort study of undervaccination in 8 managed care organizations across the United States. 

JAMA pediatrics. 2013

Association between undervaccination with diphtheria, tetanus toxoids, and acellular pertussis (DTaP) vaccine and risk of pertussis infection in children 3 to 36 months of age. 

JAMA pediatrics. 2013

Effect of age on the risk of fever and seizures following immunization with measles-containing vaccines in children. 

JAMA pediatrics. 2013

Identifying pregnancy episodes, outcomes, and mother-infant pairs in the Vaccine Safety Datalink. 

Vaccine. 2013

Inactivated influenza vaccine during pregnancy and risks for adverse obstetric events. 

Obstetrics and Gynecology. 2013

Maternal safety of trivalent inactivated influenza vaccine in pregnant women. 

Obstetrics and Gynecology. 2013

Mortality rates and cause-of-death patterns in a vaccinated population. 

American Journal of Preventive Medicine. 2013

Postlicensure surveillance for pre-specified adverse events following the 13-valent pneumococcal conjugate vaccine in children. 

Vaccine. 2013

Risk of adverse events following oseltamivir treatment in influenza outpatients, Vaccine Safety Datalink Project, 2007-2010. 

Pharmacoepidemiology and Drug Safety. 2013

Safety of a tetanus-diphtheria-acellular pertussis vaccine when used off-label in an elderly population. 

Clinical Infectious Diseases. 2013

Safety of the yellow fever vaccine: a retrospective study. 

Journal of Travel Medicine. 2013

Secular trends in diagnostic code density in electronic healthcare data from health care systems in the Vaccine Safety Datalink Project. 

Vaccine. 2013

Trivalent inactivated influenza vaccine and spontaneous abortion. 

Obstetrics and Gynecology. 2013

Vaccination site and risk of local reactions in children 1 through 6 years of age. 

Pediatrics. 2013

Measles-containing vaccines and febrile seizures in children age 4 to 6 years. 

Pediatrics. 2012

Patterns in influenza antiviral medication use before and during the 2009 H1N1 pandemic, Vaccine Safety Datalink Project, 2000-2010. 

Influenza and other respiratory viruses. 2012

H1N1 and seasonal influenza vaccine safety in the vaccine safety datalink project. 

American Journal of Preventive Medicine. 2011

Injection site and risk of medically attended local reactions to acellular pertussis vaccine. 

Pediatrics. 2011

Monitoring vaccine safety using the Vaccine Safety Datalink: utilizing immunization registries for pandemic influenza. 

Vaccine. 2011

Safety of trivalent inactivated influenza vaccine in children aged 24 to 59 months in the vaccine safety datalink. 

Archives of Pediatrics and Adolescent Medicine. 2011

Measles-mumps-rubella-varicella combination vaccine and the risk of febrile seizures. 

Pediatrics. 2010

Frequency of medically attended adverse events following tetanus and diphtheria toxoid vaccine in adolescents and young adults: a Vaccine Safety Datalink study. 

BMC Infectious Diseases. 2009

Risk of immune hemolytic anemia in children following immunization. 

Vaccine. 2009

Risk of medically attended local reactions following diphtheria toxoid containing vaccines in adolescents and young adults: a Vaccine Safety Datalink study. 

Vaccine. 2009

Varicella vaccination and ischemic stroke in children: is there an association?. 

Pediatrics. 2009

Incidence of neonatal herpes simplex virus infections in two managed care organizations: implications for surveillance Sex Transm Dis

2008

Comparison of neonatal HSV (herpes simplex virus) risk factors in cesarean and vaginal deliveries

2008

Acute adverse events following trivalent inactivated influenza vaccine (TIV) in pregnancy [poster]

2012

Estimating pregnancy start dates with prenatal procedure codes [poster]

2011

Safety of seasonal influenza vaccine (TIV) in pregnant women [poster]

2011

Safety of the yellow fever vaccine: a retrospective study [poster]

2011

The Vaccine Safety Datalink: successes and challenges monitoring vaccine safety [review]. 

Vaccine. 2014

Assessing the safety of influenza immunization during pregnancy: the Vaccine Safety Datalink [review]. 

American Journal of Obstetrics and Gynecology. 2012

A descriptive study of vaccinations occurring during pregnancy, 2002-2006 [abstract]. 

Clinical Medicine & Research. 2012

Identifying pregnancy episodes in the Vaccine Safety Datalink [abstract]. 

Clinical Medicine & Research. 2012

Evaluation of the association of maternal pertussis vaccination with obstetric events and birth outcomes [presentation]

Safety of the seasonal influenza vaccine during pregnancy: maternal health outcomes [presentation]