Or they are or become infected with COVID-19 and can't leave or go to work, AND can't pay the rent.

You know when mobile homes on postage sized lots are selling for over a million dollars in Sacramento County that the world has gone nuts and you better run away before it infects you too.

If the smell is too deep you may have to replace the infected area(s)

And now she’s saying she was scratching the bites and she got infected and needed antibiotics and her new place charges her 1200 for rent (which is more than when I charged for 800).

There is every reason to expect the same will be true again, for the reasons stated above- We are in an area of the US that - so far - has not seen a very high rate of COVID-19 infections.  

*Notes: NC is going through a PPA rate collapse disorder which has infected virtually all of the state.

Be sure YOU are up to date on your tetanus and watch for signs of infection.  

If you're renting to anyone from that that population, their infection control awareness is usually way up there and they pay close attention to the floors of their rentals.Yeah, I also like that riftsawn white oak, @Joshua Crossman, even at the seven to nine bucks a square foot it costs.

My thoughts are pretty much based on events in the past few months (ie Paris, San Bernardino, and many many massacres) as well as the 2016 cover of The Economist, ie they have a baby staring at a globe which represents the growing global pandemic of a virus patented decades ago and spread by GMmosquitoes and effective in reducing brain mass/intelligence of most children of infected mothers.That plus school shootings, massacres, water shortages, power outages, and a possible shutdown of EBT Food Stamps could quickly spark a chaos scenario in America's most populous multifamilies & cities.Look around at how many commercial/retail spaces are vacant.

Removal of non-salvageable organic material infected by mold3.