'How do I know if I was I vaccinated for polio?' and other trending questions about the virus, answered by a doctor - CNBC

People who are not immunized against the virus are encouraged to get up-to-date with their vaccines immediately, the agency says.

The good news is if you're immunized against polio you have no reason to worry unless you're immunocompromised, Foster says.

"The main way that polio is transmitted is fecal, oral, so all the things that we've been doing since the pandemic started, I think is a really good thing," Foster says.

This also includes children younger than one year of age, especially babies under 6 months; though they may have some protection from initial vaccines, they aren't fully immunized against polio yet, says Foster.

Depending on where you were born or where you lived when you received your vaccines, "OPV" may be listed on your shot records, which is the oral polio vaccine.

If you cannot access your childhood vaccination records and want to get your polio vaccines for extra protection, Foster says there isn't any harm in doing so.

At this time, polio boosters are not recommended for people who received their initial vaccines as a kid, Foster says.

With a low number of cases, Foster doesn't foresee polio boosters being recommended unless there is an uptick.