Inter- and intra-specific exposure to parasites and pathogens via the faecal-oral route: a consequence of behaviour in a patchy environment.
Epidemiol Infect
; 137(5): 630-43, 2009 May.
Article
em En
| MEDLINE
| ID: mdl-18812011
ABSTRACT
Livestock herbivores are at risk of inter- and intra-specific exposure to parasites/pathogens via the faecal-oral route during grazing. Each contact between livestock and faeces in the environment is a potential parasite/pathogen transmission event. Cattle grazing contact with faeces varies in relation to the species depositing the faeces and the distribution of the faeces. We used a foraging model to simulate the grazing behaviour of beef cattle in two grazing systems to compare the relative inter-specific and intra-specific exposure risks to parasites/pathogens. Overall, there is a greater level of intra- vs. inter-specific risk via the faecal-oral route. However, under certain conditions, particularly for microparasite infections, e.g. paratuberculosis in rabbits and bovine tuberculosis in badgers, wildlife may pose a significant exposure risk to parasites/pathogens. These risks can be enhanced when cattle are first turned out onto pasture and in situations where intra-specific variations in wildlife behaviour result in more dispersed defecation patterns.
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
3_ND
Base de dados:
MEDLINE
Assunto principal:
Doenças Parasitárias em Animais
/
Doenças dos Bovinos
/
Transmissão de Doença Infecciosa
/
Fezes
/
Comportamento Alimentar
Limite:
Animals
Idioma:
En
Revista:
Epidemiol Infect
Ano de publicação:
2009
Tipo de documento:
Article