Control eradication campaigns of bovine tuberculosis based on the «test andslaughter» approach were successful in many countries and regions; however, in some areasthe infection persists and one of the main reasons is Mycobacterium bovis infection in wild lifespecies. Argentina has applied the same approach since 1999, achieving progress in dairy cattleherds. Nonetheless, the wildlife role has never been investigated. The objective of this studywas to determine if wildlife from the Santa Fe dairy area is infected with M. bovis.Wildlife species having a positive tuberculin skin test were captured in five dairy farms.Ninety five wildlife mammals were captured; M. bovis was recovered from 7 possums (Didelphysalbiventris), from one fox (Lycolapex gimnocercus) and from one rat (Rattus norvegicus). Noneof the animals exhibited macroscopic lesions. The most frequently isolated M. bovis spoligotypeswere types 34 (4 isolates) and 12 (3 isolates). Spoligotype 34 is the most frequently isolatedtype in Argentine cattle. The role of D. albiventris as spillover host of M. bovis is discussed inthis study.
Abdala, A. A., Garbaccio, S., Zumárraga, M., & Tarabla, H. D. (2015). Mycobacterium bovis en fauna silvestre de la cuenca lechera de Santa Fe, Argentina. Revista Argentina de Microbiologia, 47(3), 174–182. https://doi.org/10.1016/j.ram.2015.04.005