Host range of mammalian orthoreovirus type 3 widening to alpine chamois.
Vet Microbiol
; 230: 72-77, 2019 Mar.
Article
em En
| MEDLINE
| ID: mdl-30827408
ABSTRACT
Mammalian orthoreoviruses (MRV) type 3 have been recently identified in human and several animal hosts, highlighting the apparent lack of species barriers. Here we report the identification and genetic characterization of MRVs strains in alpine chamois, one of the most abundant wild ungulate in the Alps. Serological survey was also performed by MRV neutralization test in chamois population during five consecutive years (2008-2012). Three novel MRVs were isolated on cell culture from chamois lung tissues. No respiratory or other clinical symptoms neither lung macroscopic lesions were observed in the chamois population. MRV strains were classified as MRV-3 within the lineage III, based on S1 phylogeny, and were closely related to Italian strains identified in dog, bat and diarrheic pig. The full genome sequence was obtained by next-generation sequencing and phylogenetic analyses showed that other segments were more similar to MRVs of different geographic locations, serotypes and hosts, including human, highlighting genome reassortment and lack of host specific barriers. By using serum neutralization test, a high prevalence of MRV-3 antibodies was observed in chamois population throughout the monitored period, showing an endemic level of infection and suggesting a self-maintenance of MRV and/or a continuous spill-over of infection from other animal species.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Orthoreovirus Mamífero 3
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Infecções por Reoviridae
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Rupicapra
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Especificidade de Hospedeiro
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Vet Microbiol
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Itália