Phylogenetic analysis of two genotype 3 Hepatitis E viruses from wild boar, Italy.
Virus Genes
; 54(6): 812-817, 2018 Dec.
Article
em En
| MEDLINE
| ID: mdl-30203361
ABSTRACT
The complete and near-complete genome sequences (7206 nt and 7229 nt) of two wild boar HEV strains detected in Southern Italy were obtained by the next generation sequencing. Phylogenetic analysis and p distance comparisons of one of the strains with HEV-3 reference subtype strains confirmed the detection of a subtype 3i (p distance = 0.110) strain in wild boar, never detected in Italy either in wild boar or pigs. The sequence of the second strain was not classifiable in any of the subtypes defined to date, showing a p distance > 0.138 and a low nucleotide identity with all HEV reference strains. The virus may represent a novel subtype, with a low relationship to other strains of genotype 3 detected in wild boar, pigs, or humans in Europe. This result suggests the circulation in Italy of an emerging or uncommon HEV strain. Sequencing followed by phylogenetic analyses of the complete HEV coding regions are important tools for understanding the evolutionary and epidemiological dynamics underlying the wide genetic diversity of HEV strains.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Filogenia
/
Doenças dos Suínos
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Vírus da Hepatite E
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Hepatite E
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Genótipo
Limite:
Animals
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article