An update on genetic analysis of porcine reproductive and respiratory syndrome virus type 2 (PRRSV-2) in South America: identification of ORF5 sequences of lineage 1A, 1C and 1G.
Arch Microbiol
; 204(7): 367, 2022 Jun 04.
Article
em En
| MEDLINE
| ID: mdl-35661262
ABSTRACT
Data regarding PRRSV-2 in South America are scant and a coordinated criterion for molecular characterization is needed. A phylogenetic analysis was performed using a dataset of 76 ORF5 sequences from South America, and results showed the identification of lineage 5 in the early 2000s and the predominance of lineage 1 at least since 2013. Lineage 1 sequences were further classified into sub-lineages according to a recent molecular characterization study of PRRSV-2 in United States. Our results revealed the recent identification in Uruguay of PRRSV-2 ORF5 sequences of lineage 1 sub-lineage C. Two additional sub-lineages were identified in South America, 1G in Chile and 1A in Peru. Continuous updating the molecular epidemiology of circulating viruses with coordinated investigations among countries is required to control and prevent the emergence of genetic variants of PRRSV-2.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vírus da Síndrome Respiratória e Reprodutiva Suína
/
Síndrome Respiratória e Reprodutiva Suína
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Animals
País/Região como assunto:
America do norte
/
America do sul
/
Chile
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article