An extra insertion of tandem repeat sequence in African swine fever virus, China, 2019
On 7 March 2019, African swine fever in a domestic pig farm was detected in Guangxi Province of China. The phylogenetic analysis showed that its causative strain contained two tandem repeat sequence insertions in the intergenic region between the I73R and the I329L genes, and was different from previously reported strains in China and other countries.
KeywordsAfrican swine fever China Tandem repeat sequence
XW and ZW designed the study. SG, YL, QW, and WR performed the experiments and analyzed the data together with LL, JL, and JB. SG and YL wrote the initial draft of the manuscript and revised the manuscript together with JL, XW and ZW.
This study was supported by the National Project for Prevention and Control of Transboundary Animal Diseases (Grant Nos. 2017YFD0501800 and 2017YFD0502300), the National Key Research and Development Program for the 13th Five-Year Plan, and the Ministry of Science and Technology, China.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving animals were in accordance with the ethical standards of China Animal Health and Epidemiology Center (No. 2019-12). All the applicable international, national, and institutional guidelines for the care and use of animals were followed.
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