

 
 INSIGHTi 
 
COVID-19 Vaccination: Selected U.S. Data 
Sources 
Updated April 11, 2022 
The sources below can help congressional staff track the progress of the U.S. Coronavirus Disease 2019 
(COVID-19) vaccination campaign at the national, state, and local levels. 
Sources were selected for having commonly cited and frequently requested data. This list is not intended 
to be comprehensive. Because different resources use different methodologies, readers should check 
websites’ notes and caveats, and use caution when comparing data. For help interpreting or analyzing 
these data, congressional staff should contact CRS (202-707-5700, or place an online request). 
For an overview of considerations for Congress, see CRS Report R47024, Immunization Information 
Systems: Overview and Current Issues and CRS Insight IN11584, Tracking COVID-19 Vaccines: U.S. 
Data Systems and Related Issues. For international sources, see CRS Insight IN11732, International 
COVID-19 Data and Vaccine Distribution: Selected Resources. 
Centers for Disease Control and Prevention’s (CDC’s) Vaccines for COVID-19 can assist constituents 
with questions about the vaccines.  
Example sources on public attitudes toward vaccination include CDC’s National Immunization Survey, 
COVIDVaxView, and State of Vaccine Confidence Insights Report, Kaiser Family Foundation, Carnegie 
Mellon University, Johns Hopkins, and scholarly articles.  
Vaccines.gov maps vaccination sites. Vaccine Equity Planner (Ariadne Labs) helps identify “vaccine 
deserts” that lack convenient access to vaccination. 
About Vaccine Data 
In the COVID-19 vaccine program, jurisdictions (e.g., states, territories, tribes, and local entities), federal 
agencies, and pharmacy partners determine the number and types of doses to be shipped to vaccination 
sites. Doses are then delivered (i.e., distributed) to vaccination administration sites such as vaccination 
clinics, doctors’ offices, and pharmacies. Providers then administer doses to patients and report 
administration data to jurisdictions and CDC. (See CDC’s About COVID-19 Vaccine Delivered and 
Administration Data.) Federal health care programs (e.g., Veterans Health Administration) manage 
vaccine data through a similar process.  
Congressional Research Service 
https://crsreports.congress.gov 
IN11595 
CRS INSIGHT 
Prepared for Members and  
 Committees of Congress 
 
  
 
 link to page 2 Congressional Research Service 
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FDA has approved or authorized three vaccines for the prevention of COVID-19 in different age groups, 
summarized in Table 1. 
Table 1. COVID-19 Vaccines Approved or Authorized by FDA  
(as of April 11, 2022) 
 
Pfizer-BioNTech 
Moderna 
J&J/Janssen 
Primary Series 
Two doses given three weeks 
Two doses given four weeks 
One dose 
apart 
apart 
FDA Approval / 
Yes, approved under the name 
Yes, approved under the name 
Not approved 
Licensure 
Comirnaty as a two-dose 
Spikevax as a two-dose 
regimen for individuals 16+  
regimen for individuals 18+ 
Emergency Use 
Yes, authorized as a 
Yes, authorized as a 
Yes, authorized as a  
Authorization 
 
two-dose regimen in 
 
two-dose regimen for 
 
single-dose regimen in 
(EUA) 
individuals 5+ (with a 
ages 18+,  
individuals 18+, and 
lower dose authorized for    third dose for certain 
 
single booster dose to be 
children 5-11),  
immunocompromised 
given at least two months 
 
third dose for certain 
individuals 18+,  
after first dose in 
immunocompromised 
individuals 18+. 
 
single booster dose (half 
individuals 5+,  
dose) to be given at least 
 
single booster dose to be 
five months after the 
given at least five months 
primary series in 
after the primary series in 
individuals 18+, and 
individuals 12+, and 
 
second booster dose to 
 
second booster dose to 
be given at least four 
be given at least four 
months after first booster 
months after first booster 
dose in individuals 50+ 
dose in individuals 50+ 
and in certain 
and in certain 
immunocompromised 
immunocompromised 
individuals 18+. 
individuals 12+. 
Source: Agata Bodie, Analyst in Health Policy, CRS, based on FDA’s documents at COVID-19 Vaccines. 
Any of the available vaccines can be used as a “mix and match” booster dose in eligible individuals. CDC 
recommends the Pfizer-BioNTech or Moderna vaccines to be given as a booster shot two months after 
receiving the J&J/Janssen vaccine or five months after completing the Pfizer-BioNTech or Moderna 
vaccination series. Additionally, CDC recommends that adults who received J&J/Janssen as both their 
primary vaccine and booster dose at least four months ago may receive a second booster dose using the 
Pfizer-BioNTech or Moderna vaccines. 
 
CDC Sources 
CDC provides data on doses and people vaccinated. Some aggregated national data are available for 
federal entities (Bureau of Prisons, Department of Defense, Indian Health Service, and Veterans Health 
Administration; see “Data Table”). CDC also tracks rates of COVID-19 cases, deaths, and 
hospitalizations by vaccination and booster status. CDC continues to study vaccine effectiveness in real-
world conditions. 
CDC (click map) compiles links to state dashboards, which may also track local data.  
  
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Non-CDC Sources 
Non-CDC sources provide different visualizations and analyses of CDC data and incorporate data from 
various jurisdiction-specific sources:  
  Bloomberg  
  Covid Act Now (and Harvard analysis with congressional district estimates as of 
September 2021) 
  Johns Hopkins University & Medicine (JHU)  
  Kaiser Family Foundation (KFF) 
  Washington Post (WP) 
  Centers for Medicare & Medicaid Services (CMS) posts nursing home-reported data. 
Vaccination Data Sources 
Table 2 links to websites containing specific vaccination statistics. 
Table 2. Vaccination Data 
(links to selected resources) 
Measure 
National 
State 
Local 
Doses delivered 
Number 
CDC  
CDC   
— 
Per capita 
CDC download Data 
CDC 
— 
Table) 
By vaccine type (J&J/Janssen, 
CDC  
CDC (download Data Table)  — 
Spikevax/Moderna, Comirnaty/Pfizer-
BioNTech)  
Doses administered 
Number 
CDC (also trend)  
CDC (also trend)  
Harvard (congressional 
JHU  
JHU  
district)a 
 
Per capita 
CDC (download Data  CDC 
— 
Table) 
Bloomberg (also trend) 
Bloomberg (also 
trend) 
Per day (daily count and 7-day 
CDCb 
CDCb 
— 
average, trend) 
WP 
WP 
By vaccine type  
CDC  
CDC (download Data Table)  — 
Percentage of delivered doses that 
Bloomberg (“Supply 
Bloomberg (“Supply used”) 
— 
have been administered 
used”) 
Booster doses administered in last 7 
CDCc 
CDCc 
 
days 
  
 link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5  link to page 5 Congressional Research Service 
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Measure 
National 
State 
Local 
People vaccinated 
People who received  ≥1 dose 
CDC (also trend)b 
CDC (also trend)b 
CDC (county) 
(number) 
 
CDC (CBSA)d 
Harvard (congressional 
district)a 
People who received ≥1 dose 
CDC 
CDC 
CDC (county) 
(percentage) 
Covid Act Now 
Covid Act Nowe 
CDC (CBSA)d 
Covid Act Now (county, 
metro area)e  
Harvard (congressional 
district)a 
People ful y vaccinatedf (number) 
CDC (also trend)b 
CDC (also trend)b 
CDC (county) 
JHU  
JHU  
CDC (CBSA)d 
WP  
WP 
Harvard (congressional 
district)a 
People ful y vaccinatedf (percentage) 
CDC  
CDC  
CDC (county, also case 
JHU  
Covid Act Nowe 
rates and testing positivity 
WP 
JHU  
map) 
WP  
CDC (CBSA)d 
Covid Act Now (county, 
metro area)e 
Harvard (congressional 
district)a 
WP (county) 
People ful y vaccinatedf by vaccine 
CDC  
CDC (download Data Table)  — 
type  
People who received additional 
CDCg (also trendh) 
CDC (download Data 
CDC (county) 
(including booster) doses  
WP 
Tableg) (also trendh)  
CDC (CBSA)d 
Covid Act Nowe 
Covid Act Now (county, 
WP 
metro area)e 
People eligible for booster who have 
CDC (“First booster 
— 
— 
not yet received it  
eligibility”) 
  
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Measure 
National 
State 
Local 
Demographicsi  
CDC (race/ethnicity, 
CDC (sex, age, trends) 
CDC (age, county and 
sex, age; also trends) 
CDC (aged 65+) 
CBSA)d 
CDC (booster uptake  CDCc (age) 
CDC (aged 65+, county) 
by race/ethnicity) 
CDCj (urban/rural, trend) 
CDC (social vulnerability, 
CDC (aged 65+) 
KFF (race/ethnicity) 
urban/rural, county) 
CDC (trends by age, 
alongside cases) 
CDC (disability status 
and age, 
race/ethnicity) 
CDC (pregnant 
people by 
race/ethnicity, trend) 
CDCj (urban/rural, 
trend) 
KFF (race/ethnicity) 
WP (race/ethnicity, 
age trends) 
Nursing homes 
Percentage of residents and staff 
CDC (trend) 
CDC (trend) 
CMS (facility-level data in 
vaccinated 
CMS 
CMS 
“Search for a nursing 
home”) 
Medicare.gov (facility-level 
data) 
Source: CRS based on sources as of April 11, 2022. 
Notes: Some sources report similar data, but with different visualizations and analysis. 
a.  Data were last updated September 2021 but may be of historical interest.  
b.  See also 7-day average trend alongside cases or deaths, see “View (right axis).”  
c.  Scrol  to Excel spreadsheets under “Attachments.”   
d.  Scrol  to Excel spreadsheets under “Attachments.” Metropolitan and Micropolitan Statistical Areas are col ectively 
known as Core-Based Statistical Areas (CBSAs). 
e.  Search state, city, or county, then scrol  to “% Vaccinated” for trend. 
f. 
As defined in these data sources, “ful y vaccinated” people have received the second dose of a two-dose vaccine or 
one dose of a single-shot vaccine (CDC). 
g.  Includes number, percentage, and by vaccine type.  
h.  Select “People Receiving a Booster Dose” or “Vaccination Coverage.” 
i. 
Not all states report demographics on vaccine recipients.  
j. 
View “Urbanicity Chart.”  
 
Author Information 
 
Ada S. Cornell 
  Angela Napili 
Senior Research Librarian 
Senior Research Librarian 
 
 
 
  
Congressional Research Service 
6 
 
 
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IN11595 · VERSION 18 · UPDATED