Requiring any single Covid vaccination is pointless, considering the virus has changed and the most recently formulated vaccination is the only one to guard against the most recent variant. Furthermore, the CDC recommends multiple doses of the 2024-2025 vaccine for people who were previously unvaccinated. Here's more about CDC vaccination recommendations: https://www.cdc.gov/vaccines/covid-19/clinical-considerations/interim-considerations-us.html
------------------------------
Cindy Opitz
Director of Research Collections
University of Iowa Museum of Natural History and Old Capitol Museum
Iowa City IA
------------------------------