Why? They have to decontaminate everything they might collect as well, not to forget the suits they are wearing.
And really – her clothes and other stuff are expendable, if that would be a problem.
They can just be left behind.
Well, decontamination is much easier when you don’t have to worry about killing whatever you’re decontaminating. Easiest way to decontaminate the outside of a metal box? Pour gasoline over it and set it on fire. Living beings don’t like that very much though, and they’re not even hermetically sealed, so you get to have fun trying to clean out the inner parts too.
Even if Adah’s not a carrier, decontamination is going to be loads of fun.
And really – her clothes and other stuff are expendable, if that would be a problem.
They can just be left behind.