Ebola

===Wild animals===
Ebola has a high mortality rate among primates.<ref name="Choi2013">{{Cite journal |vauthors=Choi JH, Croyle MA |date=December 2013 |title=Emerging targets and novel approaches to Ebola virus prophylaxis and treatment |journal=BioDrugs |volume=27 |issue=6 |pages=565–583 |doi=10.1007/s40259-013-0046-1 |pmc=3833964 |pmid=23813435}}</ref> Frequent outbreaks of Ebola may have resulted in the deaths of 5,000 gorillas.<ref>{{Cite news |date=8 December 2006 |title=Ebola 'kills over 5,000 gorillas' |work=BBC News Online |url=http://news.bbc.co.uk/2/hi/science/nature/6220122.stm |url-status=live |access-date=31 May 2009 |archive-url=https://web.archive.org/web/20090329013552/http://news.bbc.co.uk/2/hi/science/nature/6220122.stm |archive-date=29 March 2009}}</ref> Outbreaks of Ebola may have been responsible for an 88% decline in tracking indices of observed chimpanzee populations in the 420&nbsp;km<sup>2</sup> Lossi Sanctuary between 2002 and 2003.<ref name="doi10.1126/science.1092528" /> Transmission among chimpanzees through meat consumption constitutes a significant risk factor, whereas contact between the animals, such as touching dead bodies and grooming, is not.<ref>{{Cite journal |display-authors=6 |vauthors=Formenty P, Boesch C, Wyers M, Steiner C, Donati F, Dind F, Walker F, Le Guenno B |date=February 1999 |title=Ebola virus outbreak among wild chimpanzees living in a rain forest of Côte d'Ivoire |journal=The Journal of Infectious Diseases | volume = 179 |issue= Suppl 1 |pages=S120–S126 |citeseerx=10.1.1.484.5782 |doi=10.1086/514296 |pmid=9988175 |s2cid=18658117}}</ref>

Recovered gorilla carcasses have contained multiple Ebola virus strains, suggesting multiple introductions of the virus. Bodies decompose quickly and carcasses are not infectious after three to four days. Contact between gorilla groups is rare, suggesting that transmission among gorilla groups is unlikely, and that outbreaks result from transmission between viral reservoirs and animal populations.<ref name="doi10.1126/science.1092528">{{Cite journal |display-authors=6 |vauthors=Leroy EM, Rouquet P, Formenty P, Souquière S, Kilbourne A, Froment JM, Bermejo M, Smit S, Karesh W, Swanepoel R, Zaki SR, Rollin PE |date=January 2004 |title=Multiple Ebola virus transmission events and rapid decline of central African wildlife |journal=Science |volume=303 |issue=5656 |pages=387–390 |bibcode=2004Sci...303..387L |doi=10.1126/science.1092528 |pmid=14726594 |s2cid=43305484}}</ref>