Rapid Identification for Serotyping of African Swine Fever Virus Based on the Short Fragment of the EP402R Gene Encoding for CD2-Like Protein

Autor: Thanh Tran Ha Thi, Duc Truong Anh, Viet Ly Duc, Van Hoang Tuan, Thi Nguyen Chinh, Thi Chu Nhu, Thi Nguyen Huyen, Vu Dang Hoang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Acta Veterinaria, Vol 71, Iss 1, Pp 98-106 (2021)
Druh dokumentu: article
ISSN: 1820-7448
DOI: 10.2478/acve-2021-0007
Popis: The first confirmed case of African swine fever (ASF) in Vietnam was officially reported in February 2019. To date, the ASF virus (ASFV) has been detected in all 63 cities/provinces in Vietnam. In order to get a better understanding of the potential role of the EP402R gene in a grouping of ASFV serotypes, thirty ASFV sequences of EP402R genes (accession numbers: MN711757-86) from North Central Coast of Vietnam and 68 well-known references of serotype groups from previous studies were further analyzed. Interestingly, we found that a short fragment of 90 nucleotides was very typical for 8 serological groups of ASFVs. A primer set was designed to amplicon the short fragment of 90 nucleotides using the Primer3 program to establish a simplified method for the serotyping of ASFV. Our results indicated that phylogenetic analysis of the short fragment (90 nucleotides) of the EP402R gene is a very specific and useful method for ASFV serotyping when compared to the previous method using a long fragment (816 nucleotides) of this gene and well-known serotype references based on haemadsorption inhibition (HAI) assay.
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