: difficult in a way that is usually interesting or enjoyable. Thesaurus: All synonyms and antonyms for challenging Nglish: Translation of challenging for Spanish speakers Britannica English: Translation of challenging for Arabic speakers.
To illustrate the tremendous indirect impact of emerging zoonotic diseases on public health policy and structures and on public perception of health risks, the authors provide a number of examples, including that of the Ebola virus, avian influenza, monkeypox and bovine spongiform encephalopathy.
Zoonoses (/ËzoÊ.ÉËnoÊsÉ¨s/ , plural - /ËnoÊsiz/ , also spelled zooenoses; zoÃ¶noses singular (zoonosis or); zooenosis ZoÃ¶nosis: from greek Î¶á¿·Î¿Î½ zoon animal and Î½ÏÏÎ¿Ï) nosos ailment are infectious diseases (of animals), usually vertebrates that can naturally be transmitted. to humans major factor contributing to the appearance of new zoonotic pathogens in human populations is increased contact between humans and wildlife. This can be caused either by encroachment of human activity into wilderness areas or by movement of wild animals into areas of human activity.