Even if I was Dr Evil, with an evil medical degree from Evil University, I would think twice about starting my plan to capture the DNA of the public (mwahaha) by picking deliberately biohazardous samples.
why is that an issue? aren't villains known for their lack of care for their henchmen[1]? Also, apparently covid isn't really transmitted via physical contact[2], so operating such a lab probably isn't too dangerous. Finally, presumably there's PPE to protect against this sort of stuff, if you're not the type of villain that mistreats their henchmen.
[1] https://tvtropes.org/pmwiki/pmwiki.php/Main/BadBoss
[2] https://www.cdc.gov/coronavirus/2019-ncov/more/science-and-r...
https://inews.co.uk/news/covid-testing-provider-investigated...