Federally-supported vaccination sites set to close this week Last day for vaccines at Tampa Greyhound Track site and last updated 2021-05-24 23:24:10-04 TAMPA, Fla. â Side coordinators want to remind people Tuesday, May 25 is the last day for vaccinations at the federally-supported Tampa Greyhound Track COVID vaccination site. The Florida Division of Emergency Management says the last day federally-supported vaccination sites will administer shots is Tuesday, May 25, and says on Wednesday, May 26, the site will close permanently and begin demobilizing. Virginia Elston got her second dose on Monday and said the vaccination site has been very convenient. âPrior to coming here, I was trying to sign up online, and it was confusing, and they didnât have this, and you had to go here, and to just be able to come here, drive in, and get it done was very valuable," said Elston.