Everybody alive is colonized with Staph aureus and Enterococcus faecalis. It would be unlikely that all the strains on every astronaut were sensitive to methicillin and vancomycin respectively.

...Check out my gravel pit
A mystery unraveling
Wu-tang is the CD that I travel with
Don’t go against the grain if you can’t handle it...

You don’t get to help dictatorships write custom censorship algorithms and keep the Don’t Be Evil thing.