The person at the health department who gave it to me cheerfully said "Now you never have to worry about it again," but even then people did worry. When it was learned (a dozen years earlier) that someone passing through town on a train was infected, the college my mother was attending had all the students re-done in a just-making-sure way.
My parents-in-law lived in Queens at the time of a re-vaccination push in NYC. i wonder if they remember it
https://wwwnc.cdc.gov/eid/article/10/5/03-0973_article