Monthly Cumulative Influenza Vaccination Coverage Among Pregnant Persons, United States, 2019-2020 Compared with 2020-2021.

• These monthly flu vaccination coverage estimates for pregnant persons are based on electronic health record (EHR) data from the Vaccine Safety Datalink (VSD), a collaboration between CDC’s Immunization Safety Office and nine integrated health care organizations. This system has been used annually to estimate vaccination coverage among pregnant persons.

Weekly Cumulative Influenza Vaccination Coverage by Race/Ethnicity, Children aged 6 months through 17 years, United States, 2019-2020 Compared to 2020-2021

- Influenza vaccination coverage among children is assessed through the National Immunization Survey-Flu (NIS-Flu), providing weekly influenza vaccination coverage estimates for children 6 months–17 years. (https://www.cdc.gov/vaccines/imz-managers/nis/about.html)

-- NIS-Flu is a national random-digit-dialed cellular telephone survey of households, conducted during the flu season (October-June).

-Additional information on NIS-Flu methods and estimates from 2019-2020 season is available. (https://www.cdc.gov/flu/fluvaxview/coverage-1920estimates.htm)

Weekly Cumulative Influenza Vaccination Coverage by Race/Ethnicity, Children aged 6 months through 17 years, United States, 2019-2020 Compared to 2020-2021
- Influenza vaccination coverage among children is assessed through the National Immunization Survey-Flu (NIS-Flu), providing weekly influenza vaccination coverage estimates for children 6 months–17 years. (https://www.cdc.gov/vaccines/imz-managers/nis/about.html)

-- NIS-Flu is a national random-digit-dialed cellular telephone survey of households, conducted during the flu season (October-June).

-Additional information on NIS-Flu methods and estimates from 2019-2020 season is available. (https://www.cdc.gov/flu/fluvaxview/coverage-1920estimates.htm)

Weekly Cumulative Influenza Vaccination Coverage, Children 6 months through 17 years, United States, 2019-2020 Compared with 2020-2021
• Influenza vaccination coverage among children is assessed through the National Immunization Survey-Flu (NIS-Flu) annually, providing weekly influenza vaccination coverage estimates for children 6 months–17 years based upon parental report. (https://www.cdc.gov/vaccines/imz-managers/nis/about.html)
o NIS-Flu is a national random-digit-dialed cellular telephone survey of households conducted during the flu season (October-June).
• Additional information about NIS-Flu methods and estimates from the 2019-2020 season are available at: https://www.cdc.gov/flu/fluvaxview/coverage-1920estimates.htm.

Weekly Cumulative Influenza Vaccination Coverage, Children 6 months through 17 years, United States, 2019-2020 Compared with 2020-2021
• Influenza vaccination coverage among children is assessed through the National Immunization Survey-Flu (NIS-Flu) annually, providing weekly influenza vaccination coverage estimates for children 6 months–17 years based upon parental report. (https://www.cdc.gov/vaccines/imz-managers/nis/about.html)
o NIS-Flu is a national random-digit-dialed cellular telephone survey of households conducted during the flu season (October-June).
• Additional information about NIS-Flu methods and estimates from the 2019-2020 season are available at: https://www.cdc.gov/flu/fluvaxview/coverage-1920estimates.htm.