InVet 2021, 23 (2): 01-13 REVISIÓN BIBLIOGRÁFICA ISSN...
Shiga toxin-producing Escherichia coli (STEC) is a zoonotic foodborne pathogen that has a great impact on the health system. STEC is responsible for various diarrheagenic clinical symptoms that can progress to hemolytic uremic syndrome (HUS), which can lead to death. HUS is an endemic disease in Arg...
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| Autores principales: | , , , , , , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
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Universidad de Buenos Aires. Facultad de Ciencias Veterinarias
2021
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| Acceso en línea: | http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=pveterinaria/invet&cl=CL1&d=HWA_6768 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_6768.dir/6768.PDF |
| Aporte de: |
| Sumario: | Shiga toxin-producing Escherichia coli (STEC) is a zoonotic foodborne pathogen that has a great impact on the health system. STEC is responsible for various diarrheagenic clinical symptoms that can progress to hemolytic uremic syndrome (HUS), which can lead to death. HUS is an endemic disease in Argentina, and children under five years old are the vulnerable population affected. The serogroups with the highest clinical prevalence in our country are O157, O145, O121, O26, and O174. Cattle are the main reservoir of STEC. The main mode of transmission is the fecal-oral route, associated with contaminated food, especially meat or water. However, the strains with clinical impact partially coincide with those isolated from cattle, which is why the study of reservoirs, carriers, and sources of infection is important. We investigated the role of domestic and synanthropic animals from urban areas in the epidemiology of HUS. The prevalence was 1.1 % (dogs), 2.6 % (cats), and 0 % (Rattus spp.). The carrier status associated with HUS clinical cases was 10% (dogs), 33 % (cats), and 11.7 % (Rattus spp.). Due to a constant higher incidence of HUS in the southern region of Argentina, we initiated a study of reservoirs and sources of infection in Tierra del Fuego. STEC contamination in retail meat was low. The analysis of cattle and sheep slaughtered in abattoirs showed O174 and O178 as the main serogroups. STEC O157 was not detected. The study of the chain of infection of STEC is necessary to understand the dynamics of the disease in different geopolitical contexts and to establish preventive actions to reduce its prevalence. |
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