Another thread infected by this Nouveau Riche poster nonsense.

They are jilted and infect everyone new that comes in.

I may have to forgo Craigslist from now one, it's too much hassle.its going to come full circle were rentals will go in print media .. back to the future.. and craigslist has been so infected that it is no longer viable for real estate landlording. 

Besides the obvious qualifiers such as being infected by the virus or losing a job due to the virus how else can one quality?

Spic N' Span anti bacterial and refills mainly.

That way not only is there effectively more hot water, and no possibility of scald, but you've reduced the possibility of Legionella infection of the hot water. 

After that, he got some kind of infection (no proof) and he miss 4 days of work.

I can picture lots of people unwittingly uploading stuff that has been infected with something nasty, and then that just spreads ...

Tenant has become ill with a chest infection as a direct result.

Chemical warfare.Biological warfare, folks will go to an infected tree, beetles, worms, fungus and collect the stuff and plant it on the target.