Brucellosis is one of the most common zoonoses, which affects multiple species. Brucella suis is responsible for a substantial proportion of infections in humans. The B. suis biovar 1 infection in cattle is an emerging veterinary an public health problem. Little is known about the presence of B. suis in wild fauna. In Argentina seroprevalence of Brucella sp was reported in fox (Lycalopex gymnocercus), wild boar (Sus scrofa), European hare (Lepus europaeus), armadillos (Chaetophractus villosus) in Buenos Aires, La Pampa and Patagonia province. Brucella suis biotype 1 was isolated from hare in Buenos Aires and La Pampa. It has also been isolated from armadillos in La Pampa. Hares infected with B. suis biovar 1 exhibited typical lesions of the disease. Nevertheless armadillos have not macroscopically observable lesions. However, histology revealed small internal abscesses (1 mm) in the parenchyma of liver and spleen. Under experimental conditions Brucella was isolated from the spleen, liver, mesenteric lymph node, uterus, urine and testicles samples. In Argentina, as in many countries, there are an underestimation and a sub notification of human cases of brucellosis. From 2009 to 2011, 1040 sera from human resulted positive by serology to brucellosis. Blood cultures were perform in some patients, being able to isolate B. suis biovar 1 in 53% of them and B. abortus in 27%. Although the source of infection is unknown in all of these cases. In rural areas armadillos and hare are hunted and consumed, by humans. However until now it is not available evidence indicating that armadillos and hare can transmit brucellosis to domestic animals, humans or other wildlife by direct contact The route of transmission to humans could be the ingestion of contaminated food, products or undercooked meat or by manipulating these animals at the time of extracting their skin and offal. Only careful and systematic monitoring will help to know the impact of wild animals on the transmission of this zoonotic disease.
Marta Susana Kin is Deputy Professor and assistant Professor of the Department of Biology and the Department of Natural Resources of the Faculty of Exact and Natural Sciences of the National University of La Pampa (UNLPam), Argentina. He graduated in Biological Sciences from the National University of La Pampa in 1988, and has a PhD in Biology with an outstanding degree from the National University of the South (UNS) – Argentina, in 2015. He has completed an internship at the University of Malaga, Spain. In the research field, his studies focus on the field of zoonotic diseases in wild animals and the taphonomic analysis of vertebrates among others. He has published 29 research articles and participated in conferences and congresses with about 100 abstracts presented. Among other activities she has been advisor in many Thesis and served as a jury in different academic postulations, as well as she has been part of the Evaluation Committee thesis at UNLPam. She has also participated in numerous research projects as a participant, co-director and director