There's no test for a specific variant of covid. They do genomic testing after the fact, supposedly, for data gathering purposes. There's no way to find out what variant one may have, although since the Delta variant is the dominant strain currently, it's virtually assured to be the one contracted. Also, I don't think Publix does covid testing unless that Publix has a drive-thru pharmacy. The Walgreens at Mariner does drive-thru testing though.
I'm not sure I know they do Covid
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