Rates of COVID-19 Cases or Deaths by Age Group and Vaccination Status
data.cdc.gov | Last Updated 20 Jul 2023Data 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 October 21, 2022, archived on November 18, 2022, and revised on February 22, 2023. These data reflect cases among persons with a positive specimen collection date through September 24, 2022, and deaths among persons with a positive specimen collection date through September 3, 2022. Vaccination status: A person vaccinated with a primary series had SARS-CoV-2 RNA or antigen detected on a respiratory specimen collected ≥14 days after verifiably 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. Additional or booster dose: A person vaccinated with a primary series and 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. For people ages 18 years and older, 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. For people ages 12-17 years, data are graphed starting the week of December 26, 2021, 2 weeks after the first recommendation for a booster dose for adolescents ages 16-17 years. For people ages 5-11 years, data are included starting the week of June 5, 2022, 2 weeks after the first recommendation for a booster dose for children aged 5-11 years. For people ages 50 years and older, data on second booster doses are graphed starting the week including March 29, 2022, when the recommendation was made for second boosters. Vertical lines represent dates when changes occurred in U.S. policy for COVID-19 vaccination (details provided above). Reporting is by primary series vaccine type rather than additional or booster dose vaccine type. The booster dose vaccine type may be different than the primary series vaccine type. ** 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. 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. Participating jurisdictions: Currently, these 31 health departments that 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, Kentucky, Louisiana, Massachusetts, Michigan, Minnesota, Nebraska, New Jersey, New Mexico, New York, New York City (New York), North Carolina, Philadelphia (Pennsylvania), Rhode Island, South Dakota, Tennessee, Texas, Utah, Washington, and West Virginia; 30 jurisdictions also report deaths among vaccinated and unvaccinated people. These jurisdictions represent 72% of the total U.S. population and all ten of the Health and Human Services Regions. Data on cases among people who received additional or booster doses were reported from 31 jurisdictions; 30 jurisdictions also reported data on deaths among people who received one or more additional or booster dose; 28 jurisdictions reported cases among people who received two or more additional or booster doses; and 26 jurisdictions reported deaths among people who received two or more additional or booster doses. 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 vaccinated with a primary series, overall or with/without a booster dose (cumulative) or unvaccinated (obtained by subtracting the cumulative number of people vaccinated with a primary series and 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. To estimate population counts for ages 6 months through 1 year, half of the single-year population counts for ages 0 through 1 year were used. All rates are plotted by positive specimen collection date to reflect when incident infections occurred. For the primary series analysis, age-standardized rates include ages 12 years and older from April 4, 2021 through December 4, 2021, ages 5 years and older from December 5, 2021 through July 30, 2022 and ages 6 months and older from July 31, 2022 onwards. For the booster dose analysis, age-standardized rates include ages 18 years and older from September 19, 2021 through December 25, 2021, ages 12 years and older from December 26, 2021, and ages 5 years and older from June 5, 2022 onwards. Small numbers could contribute to less precision when calculating death rates among some groups. 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 people vaccinated with a primary series either overall or with a booster dose. Publications: 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 2021;70:1284–1290. Johnson AG, Amin AB, Ali AR, et al. COVID-19 Incidence and Death Rates Among Unvaccinated and Fully Vaccinated Adults with and Without Booster Doses During Periods of Delta and Omicron Variant Emergence — 25 U.S. Jurisdictions, April 4–December 25, 2021. MMWR Morb Mortal Wkly Rep 2022;71:132–138. Johnson AG, Linde L, Ali AR, et al. COVID-19 Incidence and Mortality Among Unvaccinated and Vaccinated Persons Aged ≥12 Years by Receipt of Bivalent Booster Doses and Time Since Vaccination — 24 U.S. Jurisdictions, October 3, 2021–December 24, 2022. MMWR Morb Mortal Wkly Rep 2023;72:145–152. Johnson AG, Linde L, Payne AB, et al. Notes from the Field: Comparison of COVID-19 Mortality Rates Among Adults Aged ≥65 Years Who Were Unvaccinated and Those Who Received a Bivalent Booster Dose Within the Preceding 6 Months — 20 U.S. Jurisdictions, September 18, 2022–April 1, 2023. MMWR Morb Mortal Wkly Rep 2023;72:667–669.
This dataset has the following 16 columns:
Column Name | API Column Name | Data Type | Description | Sample Values |
---|---|---|---|---|
outcome | outcome | text | COVID-19 Case or Death [case; death] | case death view top 100 |
month | month | text | Calendar month and year corresponding to MMWR week value [MMM YYYY format; e.g. APR 2021] | AUG 2022 JUN 2022 MAR 2022 DEC 2021 JUN 2021 view top 100 |
MMWR week | mmwr_week | text | MMWR epidemiological year and week [YYYYWW format; e.g. 202101] | 202215 202229 202152 202212 202210 view top 100 |
Age group | age_group | text | Age Group [0-5-4 years; 5-11 years; 12-17 years; 18-29 years; 30-49 years; 50-64 years; 65-79 years; 80+ years; all_ages_adj] | all_ages_adj 80+ 12-17 18-29 30-49 view top 100 |
Vaccine product | vaccine_product | text | FDA-authorized COVID-19 vaccine product name [ Janssen; Moderna; Pfizer; all_types (includes Janssen, Moderna, Pfizer and unknown, FDA-approved vaccine product types)] | all_types Moderna Pfizer Janssen view top 100 |
Vaccinated with outcome | vaccinated_with_outcome | number | Weekly count of individuals vaccinated with at least a primary series with the corresponding outcome | 0 1 2 3 4 view top 100 |
Fully vaccinated population | fully_vaccinated_population | number | Cumulative weekly count of the population vaccinated with at least a primary series | 20529317 6966454 141606612.55 149400259.55 5751058 view top 100 |
Unvaccinated with outcome | unvaccinated_with_outcome | number | Weekly count of unvaccinated individuals with the corresponding outcome | 1 0 2 3 4 view top 100 |
Unvaccinated population | unvaccinated_population | number | Cumulative weekly estimated count of the unvaccinated population | 60389552.35 56921431.3 52195290.4 52319741.6 53954494.15 view top 100 |
Crude vax IR | crude_vax_ir | number | Unadjusted incidence rate of the corresponding outcome among the population vaccinated with at least a primary series (per 100,000 population) | 0 0.728225611 136.262765255 89.705628145 5.509624344 view top 100 |
Crude unvax IR | crude_unvax_ir | number | Unadjusted incidence rate of the corresponding outcome among the unvaccinated population (per 100,000 population) | 0 63.405655022 1.051819035 1.901506127 190.973817084 view top 100 |
Crude IRR | crude_irr | number | Unadjusted incidence rate ratio (unvaccinated : vaccinated with at least a primary series) | 0 6.673364865 25.438996506 2.050222636 7.395122042 view top 100 |
Age adjusted vax IR | age_adj_vax_ir | number | Age-standardized incidence rate of the corresponding outcome among the population vaccinated with at least a primary series (per 100,000 population) | 0.0427853 0.0459705 0.050041 0.0542882 0.0598659 view top 100 |
Age adjusted unvax IR | age_adj_unvax_ir | number | Age-standardized incidence rate of the corresponding outcome among the unvaccinated population (per 100,000 population) | 0.691226728 0.745727756 0.755108811 0.775149015 0.984274486 view top 100 |
Age adjusted IRR | age_adj_irr | number | Age-standardized incidence rate ratio (unvaccinated rate : vaccinated with at least a primary series rate) | 1.151807588 1.323140498 1.350111381 1.386359797 1.390017844 view top 100 |
Continuity correction | continuity_correction | number | Flag for whether continuity correction was applied for one or more jurisdictions in the strata [1=Yes, 0=No]. The continuity correction is 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 and prevents incidence and death rates from growing unrealistically large due to potential overestimates of vaccination coverage. | 1 0 view top 100 |