RESUMEN
Os enteropatógenos podem ser considerados um dos principais grupos de micro-organismos patogênicos para humanos e animais. Podem estabelecer infecção nos suscetíveis devido a contaminação de água, alimentos ou pelo contato estreito com animais, incluindo as aves silvestres ou com o ambiente de criação. O acesso das aves da fauna silvestre ao ambiente próximo aos domicílios favorece a contaminação peridomiciliar pelas fezes dos passeriformes e psitaciformes. Locais como parques e praças podem se tornar propícios para veiculação destes patógenos devido a deficiente higienização e livre acesso destas aves silvestres. Neste artigo foram revisados alguns enteropatógenos de origem bacteriana e viral que podem ser considerados de alto risco para infecção humana levando-se em consideração a relevância das aves silvestres neste contexto.(AU)
Entheric pathogens can be considered one of the main pathogenic groups of microorganisms in humans and animals. It can stablish infection in susceptible due to contamination of water, food, or by close contact with animals, including wild birds or the breeding environment. The access of wild birds to the environment close to residences predispose peridomestic contamination by feces of passeriforms and psittaciformes. Places like parks and squares can become propitious for propagation of these pathogens due to poor hygiene and free access of wild birds. In this article some enteric pathogens of bacterial and viral origin was revised, which can be considered of high risk for human infection considering the relevance of wild birds in this context.(AU)
Los patógenos entéricos pueden ser considerados como uno de los grupos principales de microorganismos patogénicos para el ser humano y los animales. Pueden establecer la infección en susceptibles debido a la contaminación del agua, los alimentos o por el contacto cercano con los animales, incluyendo los pájaros salvajes o con el ambiente de la creación. El acceso a las aves de vida silvestre para el medio ambiente cerca de los hogares peridomésticos favorece la contaminación por heces de aves paseriformes y psitaciformes. Los lugares como parques y plazas pueden llegar a ser propicio para la propagación de estos patógenos debido a la falta de higiene y el libre acceso de las aves silvestres. En este artículo algunos patógenos entéricos del origen bacteriano y viral fueron revisados que pueden ser considerados de alto riesgo de contaminación humana, teniendo en cuenta la relevancia de las aves silvestres en este contexto.(AU)
Asunto(s)
Animales , Escherichia coli Enteropatógena/aislamiento & purificación , Rhodococcus equi/aislamiento & purificación , Aves/virología , Passeriformes/virología , Psittaciformes/virología , Rotavirus/aislamiento & purificación , Gammacoronavirus/aislamiento & purificación , Animales Salvajes/virología , ZoonosisRESUMEN
Os enteropatógenos podem ser considerados um dos principais grupos de micro-organismos patogênicos para humanos e animais. Podem estabelecer infecção nos suscetíveis devido a contaminação de água, alimentos ou pelo contato estreito com animais, incluindo as aves silvestres ou com o ambiente de criação. O acesso das aves da fauna silvestre ao ambiente próximo aos domicílios favorece a contaminação peridomiciliar pelas fezes dos passeriformes e psitaciformes. Locais como parques e praças podem se tornar propícios para veiculação destes patógenos devido a deficiente higienização e livre acesso destas aves silvestres. Neste artigo foram revisados alguns enteropatógenos de origem bacteriana e viral que podem ser considerados de alto risco para infecção humana levando-se em consideração a relevância das aves silvestres neste contexto.
Entheric pathogens can be considered one of the main pathogenic groups of microorganisms in humans and animals. It can stablish infection in susceptible due to contamination of water, food, or by close contact with animals, including wild birds or the breeding environment. The access of wild birds to the environment close to residences predispose peridomestic contamination by feces of passeriforms and psittaciformes. Places like parks and squares can become propitious for propagation of these pathogens due to poor hygiene and free access of wild birds. In this article some enteric pathogens of bacterial and viral origin was revised, which can be considered of high risk for human infection considering the relevance of wild birds in this context.
Los patógenos entéricos pueden ser considerados como uno de los grupos principales de microorganismos patogénicos para el ser humano y los animales. Pueden establecer la infección en susceptibles debido a la contaminación del agua, los alimentos o por el contacto cercano con los animales, incluyendo los pájaros salvajes o con el ambiente de la creación. El acceso a las aves de vida silvestre para el medio ambiente cerca de los hogares peridomésticos favorece la contaminación por heces de aves paseriformes y psitaciformes. Los lugares como parques y plazas pueden llegar a ser propicio para la propagación de estos patógenos debido a la falta de higiene y el libre acceso de las aves silvestres. En este artículo algunos patógenos entéricos del origen bacteriano y viral fueron revisados que pueden ser considerados de alto riesgo de contaminación humana, teniendo en cuenta la relevancia de las aves silvestres en este contexto.
Asunto(s)
Animales , Aves/virología , Escherichia coli Enteropatógena/aislamiento & purificación , Passeriformes/virología , Psittaciformes/virología , Rhodococcus equi/aislamiento & purificación , Animales Salvajes/virología , Gammacoronavirus/aislamiento & purificación , Rotavirus/aislamiento & purificación , ZoonosisRESUMEN
Mycobacterium species and the virulence-associated proteins (vapA, vapB, and vapN genes) of Rhodococcus equi isolated from 330 lymph nodes of collared peccaries (Tayassu tajacu) and white-lipped peccaries (Tayassu pecari) intended for human consumption were investigated. Thirty-six (10.9%) R. equi strains were isolated; 3.3% (n = 11/330) were from white-lipped peccary lymph nodes, and 7.6% (25/330) were from collared peccary lymph nodes. Among the 11 isolates of R. equi from the white-lipped peccaries, 90.9% (n = 10/11) were obtained from the mesenteric lymph nodes, and only 9.1% (n = 1/10) were obtained from the mediastinal lymph nodes. In the 25 isolates of R. equi obtained from the collared peccaries, 40.0% (n = 10/25) were recovered from the mesenteric lymph nodes, 36% (n = 9/25) from the submandibular lymph nodes, and 24.0% (n = 6/25) from the mediastinal lymph nodes. No vapA, vapB, or vapN genes (plasmidless) or three host-associated types (pVAPA, pVAPB, and pVAPN) were identified among the R. equi isolates. Mycobacterium species were isolated in 3.03% (n = 10/330) of all the lymph nodes analyzed. Among the 10 mycobacterial isolates, 60% (n = 6/10) were from the white-lipped peccary lymph nodes, and 40% (n = 4/10) were from the collared peccary lymph nodes. Ten Mycobacterium species were detected by PCR-PRA with a predominance of M. avium type 1. Sequencing of the hsp65 and rpob genes revealed mycobacteria that were saprophytic (M. sinense and M. kumamotonense) and potentially pathogenic (M. colombiense and M. intracellulare) to humans and animals. To our knowledge, this is the first description of R. equi and/or mycobacterial species identified in the lymph nodes of peccary specimens. R. equi (plasmidless) and the mycobacterial species described here have been reported as causes of pulmonary and extrapulmonary infections in both immunocompetent and immunocompromised humans.