About
Data Sources
Influenza vaccination coverage data come from a variety of sources, including the National Immunization Survey-Flu (NIS-Flu), National Health Information Survey (NHIS), the Behavioral Risk Factor Surveillance System (BRFSS), the Pregnancy Risk Assessment Monitoring System (PRAMS), the Minimum Data Set (MDS), Internet panel surveys, IPSOS KnowledgePanel, and NORC AmeriSpeak.
Find additional information about these data sources here.
The National Immunization Survey-Flu (NIS-Flu) data are used to assess annual flu vaccination coverage among children 6 months-17 years at the national level, state level, selected local levels, and some in U.S. territories.
The National Health Interview Survey (NHIS) monitors the nation's health by conducting in-person household interviews on a broad range of health topics, including flu vaccinations received by adults.
The Behavioral Risk Factor Surveillance System (BRFSS) monitors major behavioral risks among adults at the state level and includes questions on health factors related to vaccinations, including yearly questions on flu vaccinations and questions related to place of flu vaccination every third year.
The Pregnancy Risk Assessment Monitoring System (PRAMS) monitors major health issues before, during, and shortly after pregnancy and includes questions about flu vaccinations.
The Centers for Medicare & Medicaid Services (CMS) Minimum Data Set provides a screening and assessment tool for the comprehensive assessment of all residents in Medicare and Medicaid-certified long-term care facilities.
CDC uses Internet panel surveys to monitor health issues of special populations, including pregnant women and healthcare personnel. Internet panel surveys include questions related to attitudes about vaccination, health factors related to vaccinations, and flu vaccinations.
This is an online probability-based survey of adult members ages 18 or older of KnowledgePanel, an online panel recruited using address-based sampling methodology and representative of the adult U.S. population.
Online survey of adult members of the NORC AmeriSpeak Panel, an online panel representative of the entire U.S. population. The AmeriSpeak panel uses area probability sampling and includes additional coverage of hard-to-survey population segments such as rural and low-income households that are underrepresented in surveys relying on address-based sampling.
Coverage by Population
- Flu Vaccination Coverage, United States, 2023–24 Influenza Season
- National and state-specific estimates of settings where adults received influenza, updated COVID-19, and RSV vaccinations, 2023-2024 respiratory virus season, United States
- Flu Vaccination Coverage, United States, 2022-23 Influenza Season
- Vital Signs: Influenza Hospitalizations and Vaccination Coverage by Race and Ethnicity—United States, 2009–10 Through 2021–22 Influenza Seasons. MMWR. October 18, 2022; 71
- Flu Vaccination Coverage, United States, 2021–22 Influenza Season
- Flu Vaccination Coverage, United States, 2020–21 Influenza Season
- Early-Season Influenza Vaccination Uptake and Intent Among Adults – United States, September 2020
- Flu Vaccination Coverage, United States, 2019–20 Influenza Season
- Flu Vaccination Coverage, United States, 2018–19 Influenza Season
- Early-Season Influenza Vaccination Coverage—United States, November 2018
- Estimates of Influenza Vaccination Coverage among Adults—United States, 2017–18 Flu Season
- Estimates of Flu Vaccination Coverage among Children —United States, 2017–18 Flu Season
- National Early Season Flu Vaccination Coverage, United States, November 2017
- Flu Vaccination Coverage, United States, 2016-17 Influenza Season
- National Early Season Flu Vaccination Coverage, United States, November 2016
- Flu Vaccination Coverage, United States, 2015-16 Influenza Season
- National Early Season Flu Vaccination Coverage, United States, November 2015
- Flu Vaccination Coverage, United States, 2014-15 Influenza Season
- National Early Season Flu Vaccination Coverage, United States, November 2014
- Flu Vaccination Coverage, United States, 2013-14 Influenza Season
- National Early Season Flu Vaccination Coverage, United States, 2013-14 Influenza Season
- Flu Vaccination Coverage, United States, 2012-13 Influenza Season
- National Early Season Flu Vaccination Coverage, United States, 2012-13 Influenza Season
- Results from the March 2012 National Immunization Survey and National Flu Survey – United States, 2011-12 Influenza Season
- Results from the November 2011 National Flu Survey – United States, 2011-12 Influenza Season
- Final state-level influenza vaccination coverage estimates for the 2010–11 season–United States, National Immunization Survey and Behavioral Risk Factor Surveillance System, August 2010 through May 2011
- Vaccination Coverage Among Persons with Asthma — United States, 2010–2011 Influenza Season. MMWR December 6, 2013 / 62(48);973-978
- Influenza vaccination coverage estimates from the March 2011 National Flu survey, United States, 2010-11 influenza season [570 KB, 8 pages]
- Influenza vaccination coverage estimates from the November 2010 National Flu Survey, United States, 2010-11 Influenza Season [652 KB, 7 pages]
- Final estimates for 2009-10 Seasonal Influenza and Influenza A (H1N1) 2009 Monovalent Vaccination Coverage – United States, August 2009 through May, 2010 (BRFSS and NHFS)
- Influenza and COVID-19 Vaccination Coverage Among Health Care Personnel – United States, 2023-24 Influenza Season
- Influenza and COVID-19 Vaccination Coverage Among Health Care Personnel — United States, 2022-23
- Influenza and COVID-19 Vaccination Coverage Among Health Care Personnel — United States, 2021– 22. MMWR October 21, 2022 / 71(42); 1319-1326
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2020–21 Influenza Season
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2019–20 Influenza Season
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2018–19 Influenza Season
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2017–18 Influenza Season
- Health Care Personnel and Flu Vaccination, Internet Panel Survey, United States, November 2017
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2016–17 Influenza Season. MMWR 2017; 66(38);1009–1015
- Health Care Personnel and Flu Vaccination, Internet Panel Survey, United States, November 2016
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2015–16 Influenza Season. MMWR September 30, 2016 / 65(38);1026–1031
- Health Care Personnel and Flu Vaccination, Internet Panel Survey, United States, November 2015
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2014–15 Influenza Season. MMWR September 18, 2015 / 64(36);993-999
- Health Care Personnel and Flu Vaccination, Internet Panel Survey, United States, November 2014
- Influenza Vaccination Coverage Among Health Care Personnel — United States, 2013–14 Influenza Season. MMWR September 19, 2014 / 63(37);805-811
- Influenza Vaccination Performance Measurement Among Acute Care Hospital-Based Health Care Personnel — United States, 2013–14 Influenza Season. MMWR September 19, 2014 / 63(37);812-815
- Health Care Personnel and Flu Vaccination, Internet Panel Survey, United States, November, 2013
- Influenza Vaccination Coverage Among Health-Care Personnel — United States, 2012–13 Influenza Season. MMWR September 27, 2013 / 62(38);781-786
- Health Care Personnel Flu Vaccination, Internet Panel Survey, United States, November, 2012
- Influenza Vaccination Coverage Among Health-Care Personnel — 2011–12 Influenza Season, United States. MMWR September 28, 2012 / 61(38);753-757
- Influenza Vaccination Coverage Among Health-Care Personnel — 2011–12 Influenza Season, United States. MMWR September 28, 2012 / 61(38);753-757
- Health Care Personnel Flu Vaccination, Internet Panel Survey, United States, November, 2011
- Influenza Vaccination Coverage Among Health-Care Personnel — United States, 2010–11 Influenza Season. MMWR August 19, 2011 / 60(32);1073-1077
- Influenza vaccination coverage estimates from a national internet panel survey of health care personnel, United States, November 2010 [326 KB, 5 pages]
- Flu, Tdap, and COVID-19 Vaccination Coverage Among Pregnant Women – United States, April 2024
- Influenza, Tdap, and COVID-19 Vaccination Coverage and Hesitancy Among Pregnant Women – United States, April 2023. MMWR. September 29, 2023/72(39)
- Flu, Tdap, and COVID-19 Vaccination Coverage Among Pregnant Women – United States, April 2022
- Flu and Tdap Vaccination Coverage Among Pregnant Women – United States, April 2021
- Influenza and Tdap Vaccination Coverage Among Pregnant Women – United States, MMWR . October 2, 2020; 69(39)
- Vital Signs: Burden and Prevention of Influenza and Pertussis Among Pregnant Women and Infants — United States. MMWR. October 8, 2019; 68
- Influenza and Tdap Vaccination Coverage Among Pregnant Women — United States, April 2018
- Pregnant Women and Flu Vaccination, Internet Panel Survey, United States, November 2017
- Influenza Vaccination Coverage Among Pregnant Women — United States, 2016–17 Influenza Season. MMWR 2017; 66(38);1016–1022
- Pregnant Women and Flu Vaccination, Internet Panel Survey, United States, November 2016
- Flu Vaccination Coverage Among Pregnant Women – United States, 2015-16 Flu Season
- Pregnant Women and Flu Vaccination, Internet Panel Survey, United States, November 2015
- Influenza Vaccination Coverage Among Pregnant Women — United States, 2014–15 Influenza Season. MMWR September 18, 2015 / 64(36);1000-1005
- Pregnant Women and Flu Vaccination, Internet Panel Survey, United States, November 2014
- Influenza Vaccination Coverage Among Pregnant Women — United States, 2013–14 Influenza Season. MMWR September 19, 2014 / 63(37);816-821
- Pregnant Women and Flu Vaccination, Internet Panel Survey, United States, November, 2013
- Influenza Vaccination Coverage Among Pregnant Women — United States, 2012–13 Influenza Season. MMWR September 27, 2013 / 62(38);787-792
- Pregnant Women and Flu Shots, Internet Panel Survey, United States, November, 2012
- Influenza Vaccination Coverage Among Pregnant Women — 2011–12 Influenza Season, United States. MMWR September 28, 2012 / 61(38);758-763
- Pregnant Women and Flu Shots, Internet Panel Survey, United States, November, 2011
- Seasonal Influenza Vaccination Coverage Among Women Who Delivered a Live-Born Infant — 21 States and New York City, 2009–10 and 2010–11 Influenza Seasons. MMWR December 13, 2013 / 62(49);1001-1004
- Influenza Vaccination Coverage Among Pregnant Women—United States, 2010-11 Influenza Season. MMWR August 19, 2011 / 60(32);1078-1082
- Influenza vaccination estimates from a national internet panel survey of pregnant women, United States, November 2010 [428 KB, 6 pages]
- Influenza Vaccination Among Women with a Recent Live Birth, Pregnancy Risk Assessment Monitoring Systems (PRAMS)
- Influenza Vaccination Among Pregnant Women — Massachusetts, 2009–2010. MMWR November 1, 2013 / 62(43);854-857
Other VaxView Vaccination Coverage Websites
The VaxView websites provide vaccination coverage data for all ages. Monitoring coverage for recommended vaccinations across the country helps CDC assess how well local areas, states, and the nation are protected from vaccine-preventable diseases.
Find vaccination coverage data at: