Building on Josh King's answer to this question concerning the feasibility of a disease which dies with its host, can a disease be contagious by airborne means while not being contagious by fluid exchange or touch?
I'm trying to define an apocalypse virus story, but I keep running into scenarios where the zombie/berserker still constitute an unescapable threat even after they've all been cut down by automatic gun fire. Their fluids carry the virus into local water table, their flesh gets eaten by carrion birds. Even if none of that happens, the defeated zombie/berserker corpses will soon develop a variety of dangerous secondary infections unless the surviving uninfected can dispose of those corpses safely.
I'm discovering why most zombie stories don't have happy endings. The aftermath of any zombie outbreak is a continually repeating series of future disease outbreaks.
So to combat that, I am trying to limit the contagious stage of the disease to its victim's living and/or breathing moments. I'm trying to come up with a rational explanation for the death of a disease's host, also marking the end of the disease's threat to its survivors.
So can a disease be only contagious by sharing breaths?