COVID-19 Immunizations Dashboard

MAJOR UPDATE -- December 2021


The COVKID Team is now reporting COVID-19 immunization data based on a new and improved categorization scheme, which takes into account declining (waning) vaccine effectiveness over time. We now analyze the CDC vaccination data by both type (brand) of vaccine and date of vaccination to assign everyone to one of four mutually exclusive categories, for a given date:

Not immunized = never had a dose of vaccine

Partially immunized = one dose of Pfizer or Moderna

Immunized with waning immunity = overdue for booster dose

Optimally immunized = got the booster, or it's too soon for the booster

Children 5-11 years old recently became eligible to receive the two-dose Pfizer COVID-19 vaccine approved by the FDA for use in the United States, and CDC has begun to report national vaccine uptake data for children 5-11 years old. For children 5-11 years and 12-17 years, our analyses currently assume that there is no vaccine effectiveness waning over time. In fact, there is some scientific evidence that the vaccines wane over time even for teenagers. If and when the FDA approves an EUA for booster doses in teenagers, we will amend our algorithm to "allow" kids to fall into the immunized with waning immunity group. You can read about the technical details of our analyses and algorithm in our new preprint research letter:

Pathak EB and Salemi JL, 2021. Population Optimally Immunized after Accounting for Type-Specific COVID-19 Vaccine Waning Intervals: State-Level Prevalence and Trends. MEDRXIV/2021/267295 (Pending)

​​Keep in mind that the CDC vaccination data are not perfect - there are some anomalies for certain states that suggest the possibility of reporting errors.