The BBC reports on one animal-borne disease which I, for one, do not want to see making that zoonotic jump to humans:
Gruesome VD hits Tanzania baboons
Scientists are investigating a horrific new venereal disease which is affecting baboons in Tanzania. … Male baboons are particularly badly hit by the new disease, says Elibariki Mtui from the African Wildlife Foundation in Arusha. ‘The genitals kind of rot away, then they just drop off,’ he said.