Influenza Vaccination Coverage Among Pregnant Persons, United States

  • 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.
  • Figure 3. Monthly Cumulative Influenza Vaccination Coverage, Pregnant Persons 18 years to 49 years,* United States, Comparing 2019-20 with 2020-21, Data Source: Vaccine Safety Datalink, Data are current through December 31, 2020 – View and Download Data

§Naleway, A. L., Gold, R., Kurosky, S., Riedlinger, K., Henninger, M. L., Nordin, J. D., … & McCarthy, N. L. (2013). Identifying pregnancy episodes, outcomes, and mother–infant pairs in the Vaccine Safety Datalink. Vaccine, 31(27), 2898-2903. https://doi.org/10.1016/j.vaccine.2013.03.069external icon

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* For both seasons, these during-season estimates for each month may change as the season progresses.