After five full summers among us, COVID-19 has settled in once again and become, well, a FLiRT. That amusing technical acronym is the name given to the latest variants, which now account for more than 75% of the new COVID-19 cases in the United States. There’s consistently been a bit of a seasonal uptick in summer and winter, kind of like our property taxes. For the last year or so, it’s the same symptoms but different variants, yet still COVID-19. Called FLiRT due to the technical names for its spike protein mutations, which include the letters F, L, R and T, FLiRT is a subvariant of last winter’s dominant strain Omicron, and…