system
Given the following post, respond as if you're commenting on Reddit:
human
ELIF: If viruses like Ebola can devestate the human population (who have knowledge, can take measures to prevent it's spread, and can devise treatment/vaccines) why don't they completely wipe out the animal populations they originate from?

With modern medicine, the ability to comprehend advanced concepts like transmission and prevention viruses like Ebola can still tear through a population and cause mass chaos, death and destruction.   Ebola is said to have been transmitted from animals, who don't necessarily posses these skills.. and who we typically think of as "animals" who eat raw food, never wash their hands, have unproctected sex, and who move freely though the jungle/forest. 

How are animals able to avoid being completely wiped out by things like Ebola?  Why don't see hear about complete populations of monkey's dying, dead monkey bodies littering the forest etc.

The only thing I can think of is that due to their limited mobility (no airplanes, cars, etc) the outbreaks naturally "burn out", which makes sense.. however,  they also have a big disadvantage of that, without the knowledge of how the virus works, when a monkey does die, it's left in the forest to rot and be eaten by other animals which I would think would be a possible re-contamination source until it's decomposed and infected tissue/fluids are gone.  I just can't wrap my head around it.  Thanks.
gpt
Because the source of Ebola (we believe that to be Fruit Bats, bus aren't absolutely sure about that) isn't affected the same way. They are carriers, and the effects of the disease in a carrier can be a minor nuisance or even no symptoms at all.

More over, the most successful evolutionary strategy for most diseases is not to be fatal like Ebola, but to let the host live as long as possible in order to spread the infection as widely as possible. If a disease is as infectious and deadly as Ebola, it gets dealt with one way or another. Either the remaining population will be immune, or the population of possible vectors will be extinct and the disease along with it.