The Resistance Always Increases
Now one may rightfully argue that fighting germs and fighting humans is not the same thing. For starters, humans are generally considered to be
smarter than germs. Germs develop resistance by dumb luck. Humans
do this too, but at least occasionally, intelligence also plays a role.
Germs have a hard time communicating their knowledge to other living
germs. Humans have cell phones not to mention other, more antiquated
modes of communication. Humans employ chemical weapons against
germs, but generally avoid using such weapons of mass destruction
against other humans. So when it comes to developing resistance, it is
safe to say that humans are at least on par with germs.