revengers - people who spread covid for revenge.
on family, friends acquaintances. enemies/rivals.
on bad politicians, pundits, etc. especially those who DOWN-PLAYED/denied/etc. (or otherwise messed up on) covid-19...
could be people who have suffered as a result; lost family/friends/etc. to c-19. could be politically motivated (bad leadership/decision-making/etc.) could be other things...?