Lovera, R.; Fernández, M.S.; Jacob, J.; Lucero, N.; Morici, G.; Brihuega, B.; Farace, M.I.; Caracostantogolo, J.; Cavia, R. "Intrinsic and extrinsic factors related to pathogen infection in wild small mammals in intensive milk cattle and swine production systems" (2017) PLoS Neglected Tropical Diseases. 11(6)
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Background: Understanding the ecological processes that are involved in the transmission of zoonotic pathogens by small mammals may aid adequate and effective management measures. Few attempts have been made to analyze the ecological aspects that influence pathogen infection in small mammals in livestock production systems. We describe the infection of small mammals with Leptospira spp., Brucella spp., Trichinella spp. and Cysticercus fasciolaris and assess the related intrinsic and extrinsic factors in livestock production systems in central Argentina at the small mammal community, population and individual levels. Methodology/Principal findings: Ten pig farms and eight dairy farms were studied by removal trapping of small mammals from 2008 to 2011. Each farm was sampled seasonally over the course of one year with cage and Sherman live traps. The 505 small mammals captured (14,359 trap-nights) included three introduced murine rodents, four native rodents and two opossums. Leptospira spp., anti-Brucella spp. antibodies and Trichinella spp. were found in the three murine rodents and both opossums. Rattus norvegicus was also infected with C. fasciolaris; Akodon azarae and Oligoryzomys flavescens with Leptospira spp.; anti-Brucella spp. antibodies were found in A. azarae. Two or more pathogens occurred simultaneously on 89% of the farms, and each pathogen was found on at least 50% of the farms. Pathogen infections increased with host abundance. Infection by Leptospira spp. also increased with precipitation and during warm seasons. The occurrence of anti-Brucella spp. antibodies was higher on dairy farms and during the winter and summer. The host abundances limit values, from which farms are expected to be free of the studied pathogens, are reported. Conclusions/Significance: Murine rodents maintain pathogens within farms, whereas other native species are likely dispersing pathogens among farms. Hence, we recommend preventing and controlling murines in farm dwellings and isolating farms from their surroundings to avoid contact with other wild mammals. © 2017 Lovera et al.


Documento: Artículo
Título:Intrinsic and extrinsic factors related to pathogen infection in wild small mammals in intensive milk cattle and swine production systems
Autor:Lovera, R.; Fernández, M.S.; Jacob, J.; Lucero, N.; Morici, G.; Brihuega, B.; Farace, M.I.; Caracostantogolo, J.; Cavia, R.
Filiación:Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires and Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), UBA-CONICET, Cdad. Autónoma de Buenos Aires, Argentina
Federal Research Centre for Cultivated Plants – Julius Kuehn Institute, Vertebrate Research, Münster, Germany
Administración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos G. Malbrán” (ANLIS), Cdad. Autónoma de Buenos Aires, Argentina
Área de Parasitología, Instituto de Patobiología, Instituto Nacional de Tecnología Agropecuaria (INTA Castelar), CICVyA, Buenos Aires, Argentina
Laboratorio del Leptospirosis, Referencia OIE, Instituto de Patobiología, Instituto Nacional de Tecnología Agropecuaria (INTA Castelar), CICVyA, Buenos Aires, Argentina
Palabras clave:cyanocobalamin; intrinsic factor; bacterium antibody; animal tissue; animal trapping; Argentina; Article; Brucella; dairy cattle; gene sequence; infection; Leptospira; livestock; mammal; nonhuman; Oligoryzomys; pathogenesis; polymerase chain reaction; prevalence; Rattus norvegicus; Taenia taeniaeformis; Trichinella; agricultural land; animal; Bacterial Infections; blood; bovine; immunology; isolation and purification; microbiology; opossum; Parasitic Diseases, Animal; parasitology; pig; rodent; Taenia; veterinary; Animals; Antibodies, Bacterial; Argentina; Bacterial Infections; Brucella; Cattle; Farms; Leptospira; Opossums; Parasitic Diseases, Animal; Prevalence; Rodentia; Swine; Taenia; Trichinella
Título revista:PLoS Neglected Tropical Diseases
Título revista abreviado:PLoS. Negl. Trop. Dis.
CAS:cyanocobalamin, 53570-76-6, 68-19-9, 8064-09-3; Antibodies, Bacterial


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---------- APA ----------
Lovera, R., Fernández, M.S., Jacob, J., Lucero, N., Morici, G., Brihuega, B., Farace, M.I.,..., Cavia, R. (2017) . Intrinsic and extrinsic factors related to pathogen infection in wild small mammals in intensive milk cattle and swine production systems. PLoS Neglected Tropical Diseases, 11(6).
---------- CHICAGO ----------
Lovera, R., Fernández, M.S., Jacob, J., Lucero, N., Morici, G., Brihuega, B., et al. "Intrinsic and extrinsic factors related to pathogen infection in wild small mammals in intensive milk cattle and swine production systems" . PLoS Neglected Tropical Diseases 11, no. 6 (2017).
---------- MLA ----------
Lovera, R., Fernández, M.S., Jacob, J., Lucero, N., Morici, G., Brihuega, B., et al. "Intrinsic and extrinsic factors related to pathogen infection in wild small mammals in intensive milk cattle and swine production systems" . PLoS Neglected Tropical Diseases, vol. 11, no. 6, 2017.
---------- VANCOUVER ----------
Lovera, R., Fernández, M.S., Jacob, J., Lucero, N., Morici, G., Brihuega, B., et al. Intrinsic and extrinsic factors related to pathogen infection in wild small mammals in intensive milk cattle and swine production systems. PLoS. Negl. Trop. Dis. 2017;11(6).