Epidemiological investigation of porcine circovirus type 2 and its coinfection rate in Shandong province in China from 2015 to 2018.
BMC Vet Res
; 17(1): 17, 2021 Jan 07.
Article
em En
| MEDLINE
| ID: mdl-33413367
ABSTRACT
BACKGROUND:
Porcine circovirus type 2 (PCV2) is one of the crucial swine viral pathogens, caused porcine circovirus associated diseases (PCVAD). Shandong province is one of the most important pork producing areas and bears a considerable economic loss due to PCVAD. However, there is limited information on epidemiology and coinfection rate of PCV2 with other critical swine diseases in this area, such as porcine reproductive and respiratory syndrome virus (PRRSV), classical swine fever virus (CSFV), Pseudorabies virus (PRV), and porcine epidemic diarrhea virus (PEDV).RESULTS:
Overall, 89.59% serum samples and 36.98% tissue samples were positive for PCV2 specified ELISA and PCR positive for PCV2, respectively. The coinfection rates of PCV2 with PRRSV, PRV, CSFV, and PEDV were 26.73%, 18.37%, 13.06%, and 3.47%, respectively. Moreover, genetic characteristic of PCV2 were analyzed based on the cap genes showing that PCV2d is the dominant sub-genotype circulating in the province.CONCLUSIONS:
Our findings reveal that PCV2d, as the dominant strain, is prevailing in pig farms in Shandong province at high levels. There was a high frequency of coinfection of PCV2 and PRRSV.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pseudorraiva
/
Doenças dos Suínos
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Infecções por Coronavirus
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Infecções por Circoviridae
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Síndrome Respiratória e Reprodutiva Suína
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Coinfecção
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Peste Suína Clássica
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Revista:
BMC Vet Res
Assunto da revista:
MEDICINA VETERINARIA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China