A zoonosis ( /ˌzoʊ.əˈnoʊsɨs/) is an infectious disease that is transmitted between species (sometimes by a vector) from animals to humans or from humans to animals (the latter is sometimes called reverse zoonosis or anthroponosis). In a systematic review of 1,415 pathogens known to infect humans, 61% were zoonotic. The emergence of a pathogen into a new host species is called disease invasion or "disease emergence".
The emerging interdisciplinary field of conservation medicine, which integrates human and veterinary medicine, and environmental sciences, is largely concerned with zoonoses.
Read more about Zoonosis: Partial List of Carriers, List of Infectious Agents, Partial List of Zoonoses, Historical Development of Zoonotic Diseases, Partial List of Outbreaks of Zoonosis Associated With Fairs and Petting Zoos, Contribution of Zoonotic Pathogens To Foodborne Illness