Quote (iMMze @ Oct 17 2014 02:58pm)
Yeah IDK where he got this from or if he is just thinking on the spot, but there is no evidence to support either claim, especially the claim that the virus can improve upon human-human transmission (since it has not done so in the past 40 years despite afflicting some dense population areas)
Viruses mutate (RNA especially), this isn't something exclusive to Ebola. I'm not sure why you seem to think this is remotely controversial.
The virus has killed isolated populations before this. I don't know what "densely populated areas" you're talking about, but a few hundred cases over decades is nothing compared to what we're seeing now.
More human to human transmissions increases the likelihood of a beneficial mutation (for human to human transmission) being favored. That sort of change could have happened at any time in the past, but for a virus that rarely leaves its natural host population it would be unlikely to be favored.
As I said, humans are only incidentally impacted through contact with infected animals. This normally means bush meat (e.g. A chimp that was infected) or through direct contact with the natural host (e.g. Consumption of fruit bat). The longer this outbreak goes on the more likely a random mutation will occur which favors the current human to human mode of transmission.