The February 2026 monthly data are available via IPUMS CPS. We have not yet processed the January 2026 data that were recently re-released by the Census Bureau. October 2025 data were not collected during the U.S. federal government shutdown.
IMPOLIOVACN
How many times had polio vaccine by mouth
- Codes
- Description
- Comparability
- Universe
- Availability
- Flags
- Questionnaire Text
- UnHarmonized Variables
Codes
This variable is not available for any of the currently selected samples.
Description
IMPOLIOVACN reports how many times the respondent has received the polio vaccine by mouth.
This variable is part of the Immunization Supplement .
Universe
- 1978-1984: Persons age 19 or younger in month-in-samples 2-4 and 6-8, who reported receiving the polio vaccine by mouth
- 1985: Persons age 19 or younger, who reported receiving the polio vaccine by mouth
Availability
| Years | Jan | Feb | ASEC | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1978 – 1985 | - | - | - | - | - | - | - | - | X | - | - | - |
