The prevalence of rodent-borne zoonotic pathogens in the South Gobi desert region of Mongolia

Esson Carol, Samelius Gustaf, Strand Tanja M., Lundkvist Ake, Michaux Johan, Rasback Therese, Wahab Tara, Mijiddorj Tserennadmid Nadia, Berger Lee, Skerratt Lee F., Low Matthew. 2023. The prevalence of rodent-borne zoonotic pathogens in the South Gobi desert region of Mongolia. Infection Ecology and Epidemiology, 13 (1):2270258, 11 p.

Résumé : The alpine ecosystems and communities of central Asia are currently undergoing large-scale ecological and socio-ecological changes likely to affect wildlife-livestock-human disease interactions and zoonosis transmission risk. However, relatively little is known about the prevalence of pathogens in this region. Between 2012 and 2015 we screened 142 rodents in Mongolia's Gobi desert for exposure to important zoonotic and livestock pathogens. Rodent seroprevalence to Leptospira spp. was >1/3 of tested animals, Toxoplasma gondii and Coxiella burnetii approximately 1/8 animals, and the hantaviruses being between 1/20 (Puumala-like hantavirus) and <1/100 (Seoul-like hantavirus). Gerbils trapped inside local dwellings were one of the species seropositive to Puumala-like hantavirus, suggesting a potential zoonotic transmission pathway. Seventeen genera of zoonotic bacteria were also detected in the faeces and ticks collected from these rodents, with one tick testing positive to Yersinia. Our study helps provide baseline patterns of disease prevalence needed to infer potential transmission between source and target populations in this region, and to help shift the focus of epidemiological research towards understanding disease transmission among species and proactive disease mitigation strategies within a broader One Health framework.

Mots-clés Agrovoc : transmission des maladies, zoonose, approche Une seule santé, épidémiologie, Enquête pathologique, Coxiella burnetii, vecteur de maladie, hantavirus, maladie de l'homme, Leptospira, morbidité, bétail, agent pathogène, Toxoplasma gondii, leptospirose, rongeur

Mots-clés géographiques Agrovoc : désert de Gobi, Mongolie

Mots-clés libres : Rodent, Zoonoses, Leptospira, Hantavirus, Haematology, Mongolia

Classification Agris : L73 - Maladies des animaux
S50 - Santé humaine

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Auteurs et affiliations

• Esson Carol, James Cook University (AUS)
• Samelius Gustaf, Snow Leopard Trust (USA)
• Strand Tanja M., Uppsala University (SWE)
• Lundkvist Ake, Uppsala University (SWE)
• Michaux Johan, CIRAD-BIOS-UMR ASTRE (FRA)
• Rasback Therese, National Veterinary Institute (SWE)
• Wahab Tara, Public Health Agency of Sweden (SWE)
• Mijiddorj Tserennadmid Nadia, Snow Leopard Trust (USA)
• Berger Lee, James Cook University (AUS)
• Skerratt Lee F., James Cook University (AUS)
• Low Matthew, Swedish University of Agricultural Sciences (SWE) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/610785/)

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