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Infectious diseases and their outbreaks in Asia-Pacific: Biodiversity and its regulation loss matter

Morand S., Jittapalapong S., Suputtamongkol Y., Abdullah M.T., Huan T.B.. 2014. PloS One, 9 (2) : 7 p..

Despite increasing control measures, numerous parasitic and infectious diseases are emerging, re-emerging or causing recurrent outbreaks particularly in Asia and the Pacific region, a hot spot of both infectious disease emergence and biodiversity at risk. We investigate how biodiversity affects the distribution of infectious diseases and their outbreaks in this region, taking into account socio-economics (population size, GDP, public health expenditure), geography (latitude and nation size), climate (precipitation, temperature) and biodiversity (bird and mammal species richness, forest cover, mammal and bird species at threat). We show, among countries, that the overall richness of infectious diseases is positively correlated with the richness of birds and mammals, but the number of zoonotic disease outbreaks is positively correlated with the number of threatened mammal and bird species and the number of vector-borne disease outbreaks is negatively correlated with forest cover. These results suggest that, among countries, biodiversity is a source of pathogens, but also that the loss of biodiversity or its regulation, as measured by forest cover or threatened species, seems to be associated with an increase in zoonotic and vector-borne disease outbreaks. (Résumé d'auteur)

Mots-clés : mammifère; oiseau; Écologie animale; organisme nuisible aux animaux; agent pathogène; facteur climatique; facteur lié au site; facteur du milieu; environnement socioéconomique; transmission des maladies; Épidémiologie; biodiversité; distribution géographique; parasitose; maladie infectieuse; santé publique; zoonose; asie et pacifique; Émergence

Thématique : Sciences et hygiène vétérinaires : considérations générales; Maladies des animaux; Organismes nuisibles des animaux; Conservation de la nature et ressources foncières

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