So as characters get into proximity with each other, or spray fluids around as they get punched or whatever, infections can spread from one to another. Maybe they get better if they remain unplayed for a while. I can't decide whether it would be funnier if this had no effect at all or if it degraded the performance of the characters somehow.
the pathologic 2 infection meter but when it fills up you can unleash a special attack where you cough and sneeze all over your opponent