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created Dec 22 2021

updated Jan 21 2022

Description

Data for CDC’s COVID Data Tracker site on Rates of COVID-19 Cases and Deaths by Vaccination Status.
Click 'More' for important dataset description and footnotes
Dataset and data visualization details:
These data were posted on January 21, 2022 and reflect cases among persons with a positive specimen collection date through December 25, 2021 and deaths among persons with a positive specimen collection date through December 4, 2021. These data will be updated monthly. Please note that these provisional data are subject to change.
Vaccination status: A fully vaccinated person had SARS-CoV-2 RNA or antigen detected on a respiratory specimen collected ≥14 days after completing the primary series of an FDA-authorized or approved COVID-19 vaccine. An unvaccinated person had SARS-CoV-2 RNA or antigen detected on a respiratory specimen and has not been verified to have received COVID-19 vaccine. Excluded were partially vaccinated people who received at least one FDA-authorized vaccine dose but did not complete a primary series ≥14 days before collection of a specimen where SARS-CoV-2 RNA or antigen was detected.
Deaths: A COVID-19–associated death occurred in a person with a documented COVID-19 diagnosis who died; health department staff reviewed to make a determination using vital records, public health investigation, or other data sources. Rates of COVID-19 deaths by vaccination status are reported based on when the patient was tested for COVID-19, not the date they died. Deaths usually occur up to 30 days after COVID-19 diagnosis.
Additional or booster dose: A fully vaccinated person with an additional or booster dose had SARS-CoV-2 RNA or antigen detected on a respiratory specimen collected ≥14 days after receipt of an additional or booster dose of any COVID-19 vaccine on or after August 13, 2021. Data are graphed starting the week including September 24, 2021, when a COVID-19 booster dose was first recommended by CDC for adults 65+ years old and people in certain populations and high risk occupational and institutional settings. Vertical lines represent dates when changes occurred in U.S. policy for COVID-19 vaccination (details provided above).
* Because data on the immune status of cases and associated deaths are unavailable, an additional dose in an immunocompromised person cannot be distinguished from a booster dose. This is a relevant consideration because vaccines can be less effective in this group.
Participating jurisdictions: Currently, these 28 health departments who regularly link their case surveillance to immunization information system data are included in these incidence rate estimates: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, District of Columbia, Florida, Georgia, Idaho, Indiana, Kansas, Louisiana, Massachusetts, Michigan, Minnesota, Nebraska, New Jersey, New Mexico, New York, New York City (New York), North Carolina, Rhode Island, Seattle King County (Washington), Tennessee, Texas, Utah, and Wisconsin; 26 jurisdictions also report deaths among vaccinated and unvaccinated people. These jurisdictions represent 69% of the total U.S. population and all ten of the Health and Human Services Regions. Data on cases and deaths including people who received additional or booster doses were reported from 25 jurisdictions. This list will be updated as more jurisdictions participate.
Incidence rate estimates: Weekly age-specific incidence rates by vaccination status were calculated as the number of cases or deaths divided by the number of people either fully vaccinated (cumulative) or unvaccinated (obtained by subtracting the cumulative number of fully vaccinated and current estimates of partially vaccinated people from the 2019 U.S. intercensal population estimates) and multiplied by 100,000. Overall incidence rates were age-standardized using the 2000 U.S. Census standard population. All rates are plotted by positive specimen collection date to reflect when incident infections occurred.
Continuity correction: A continuity correction has been applied to the denominators by capping the percent population coverage at 95%. To do this, we assumed that at least 5% of each age group would always be unvaccinated in each jurisdiction. Adding this correction ensures that there is always a reasonable denominator for the unvaccinated population that would prevent incidence and death rates from growing unrealistically large due to potential overestimates of vaccination coverage.
Incidence rate ratios (IRRs): IRRs for the past one month were calculated by dividing the average weekly incidence rates among unvaccinated people by that among fully vaccinated people.
Publication Scobie HM, Johnson AG, Suthar AB, et al. Monitoring Incidence of COVID-19 Cases, Hospitalizations, and Deaths, by Vaccination Status — 13 U.S. Jurisdictions, April 4–July 17, 2021. MMWR Morb Mortal Wkly Rep. ePub: 10 September 2021. DOI: http://dx.doi.org/10.15585/mmwr.mm7037e1

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Category
Public Health Surveillance
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Tags
covid-19 deaths, covid-19 cases, covid-19, covid-19 vaccination, covid-19 breakthrough, covid-19 booster doses
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Licensing and Attribution
Data Provided By
CDC COVID-19 Response, Epidemiology Task Force
Source Link
(none)
Common Core
Contact Name
Vaccine Breakthrough Unit, Surveillance and Analytics Team
Contact Email
eocevent531@cdc.gov
Publisher
CDC
Public Access Level
public
Bureau Code
009:20
Program Code
009:038
Geographic Coverage
Select US Jurisdictions
Temporal Applicability
September 19, 2021-December 25, 2021
Update Frequency
Monthly
Language
English
Data Quality
Suggested Citation
Centers for Disease Control and Prevention, COVID-19 Response. Rates of COVID-19 Cases or Deaths by Age Group and Vaccination Status Public Use Data (version date: January 21, 2022).
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