Highly lethal genotype I and II recombinant African swine fever viruses detected in pigs

Bibliographic Details
Title: Highly lethal genotype I and II recombinant African swine fever viruses detected in pigs
Authors: Dongming Zhao, Encheng Sun, Lianyu Huang, Leilei Ding, Yuanmao Zhu, Jiwen Zhang, Dongdong Shen, Xianfeng Zhang, Zhenjiang Zhang, Tao Ren, Wan Wang, Fang Li, Xijun He, Zhigao Bu
Source: Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Publisher Information: Nature Portfolio, 2023.
Publication Year: 2023
Collection: LCC:Science
Subject Terms: Science
More Details: Abstract African swine fever virus (ASFV) poses a great threat to the global pig industry and food security. Currently, 24 ASFV genotypes have been reported but it is unclear whether recombination of different genotype viruses occurs in nature. In this study, we detect three recombinants of genotype I and II ASFVs in pigs in China. These recombinants are genetically similar and classified as genotype I according to their B646L gene, yet 10 discrete fragments accounting for over 56% of their genomes are derived from genotype II virus. Animal studies with one of the recombinant viruses indicate high lethality and transmissibility in pigs, and deletion of the virulence-related genes MGF_505/360 and EP402R derived from virulent genotype II virus highly attenuates its virulence. The live attenuated vaccine derived from genotype II ASFV is not protective against challenge of the recombinant virus. These naturally occurring recombinants of genotype I and II ASFVs have the potential to pose a challenge to the global pig industry.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2041-1723
Relation: https://doaj.org/toc/2041-1723
DOI: 10.1038/s41467-023-38868-w
Access URL: https://doaj.org/article/a63021f800ce43ffa6f9f1e823489138
Accession Number: edsdoj.63021f800ce43ffa6f9f1e823489138
Database: Directory of Open Access Journals
More Details
ISSN:20411723
DOI:10.1038/s41467-023-38868-w
Published in:Nature Communications
Language:English