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1.
Arch Virol ; 165(12): 2945-2951, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33030572

RESUMO

Minute virus of canines (MVC) belongs to the family Parvoviridae, genus Bocaparvovirus, and has been mainly described during enteritis episodes in young dogs. This study reports the characterization of four divergent MVC strains detected between 2012 and 2018, three of which were from dogs illegally imported into Italy, most probably from Eastern Europe, that cluster together phylogenetically but share low genetic similarity with the fourth MVC from an autochthonous dog and other available MVC sequences. Our data indicate that the introduction of genetically distinct MVC strains occurred through the illegal movement of dogs from a geographic area where a distinct MVC lineage was most likely circulating. Enforced surveillance of MVC in the dog population of Eastern Europe and its neighboring countries may shed light on, and eventually trace back to, illegal animal movements.


Assuntos
Doenças do Cão/virologia , Cães/virologia , Infecções por Parvoviridae/veterinária , Parvovirus Canino/isolamento & purificação , Animais , DNA Viral/química , DNA Viral/genética , Europa Oriental , Itália , Infecções por Parvoviridae/virologia , Parvovirus Canino/genética , Filogenia , Viagem
2.
Sci Rep ; 10(1): 12522, 2020 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-32694528

RESUMO

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

3.
Sci Rep ; 10(1): 9217, 2020 06 08.
Artigo em Inglês | MEDLINE | ID: mdl-32513947

RESUMO

Noroviruses (NoVs) are one of the major causative agents of non-bacterial gastroenteritis in humans worldwide. NoVs, belonging to Caliciviridae, are classified into ten genogroups (G) and eight P-groups based on major capsid protein (VP1) and of the RNA-dependent-RNA-polymerase (RdRp), respectively. In swine, the main genogroup and P-group identified are GII and GII.P; which can infect humans too. To date, only one case of GIIP.11 have been identified in swine in Italy while the circulation of other P-types is currently unknown. In the present study, 225 swine faecal samples were collected from 74 swine herds in Veneto region through on-farm monitoring. NoV circulation was particularly high in older pigs. The phylogenetic analysis showed the co-circulation of NoVs belonging to two different P-types: GII.P11 and GII.P18, here described for the first time in Italy, presenting an extensive genetic diversity, never described before worldwide. Distinct NoV genetic subgroups and unique amino acid mutations were identified for each P-type for the first time. This study demonstrated the co-circulation of diverse swine NoVs subgroups in Italy, raising questions on the origin of such diversity and suggesting that continuous monitoring of swine NoVs is needed to track the emergence of potentially zoonotic viruses by recombination events.


Assuntos
Gastroenterite/patologia , Variação Genética , Norovirus/genética , Doenças dos Suínos/patologia , Envelhecimento , Animais , Proteínas do Capsídeo/genética , Fezes/virologia , Gastroenterite/epidemiologia , Gastroenterite/virologia , Itália/epidemiologia , Mutação , Norovirus/isolamento & purificação , Filogenia , Prevalência , RNA Polimerase Dependente de RNA/classificação , RNA Polimerase Dependente de RNA/genética , Suínos , Doenças dos Suínos/epidemiologia , Doenças dos Suínos/virologia
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