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Marion County could reach herd immunity in June if COVID-19 vaccination rate increases

Posted at 3:05 PM, Feb 11, 2021
and last updated 2021-02-11 16:29:42-05

INDIANAPOLIS — If the number of COVID-19 vaccinations in Marion County increases soon, 80% of its adults could be vaccinated in June, officials announced Thursday.

Marion County Public Health Department Director Dr. Virginia Caine said if at least 4,380 adults were vaccinated per day starting March 15, Marion County will reach herd immunity by June 30.

But if vaccination rates continue at the current rate of about 2,297 adults per day, the county would reach herd immunity by Oct. 6, Caine said.


Once 80% of the county's population is vaccinated and reaches herd immunity, there won't be large outbreaks or spread of COVID-19, Caine said.

Caine remains hopeful Johnson & Johnson's one-shot COVID-19 vaccine will help with the county's efforts once it's approved for emergency use. She also emphasized the importance of Indiana getting more doses, and the county getting more doses from the state.

Caine and Indianapolis Mayor Joe Hogsett gave an update on COVID-19 cases and vaccination efforts Thursday. You can watch it below.