2 ms·

The time it takes to get to Mars itself would serve as a quarantine period.

• LargoLasskhyfv 3y ago
  Well... there is the phenomenon of antibiotica-resistant bacteria building up in places where they shouldn't be at all, surgical operating theatres for example. Do you expect the masses to mars movers to be left alone unattended after reaching their destination, no maintenance, except under BSL-4 conditions, for being ready to go back? Or the passengers showered and scrubbed in airlocks with antiseptic foam, ultraviolet light, and whatnot else, while their clothing is being 'recycled'? The airlocks probably will be there, but the rest? One could probably argue that it all won't matter, like it mostly doesn't in Antarctica, because air too dry and cold, etc. But can you be sure?