Lumpy skin disease on cattle in Tra Vinh and Dong Thap provinces

Abstract

This study was performed to determine the prevalence, risk factors, and P32 gene characteristics of lumpy skin disease (LSD) in cattle in Tra Vinh and Dong Thap provinces from October 2021 to June 2022. The studied result showed that there were 187 cattle raising households out of 1,459
surveyed households positive with cattle LSD, accounting for 12.82%, and 91.67 % compared to the testing households (187/204). From 187 outbreaks in Tra Vinh and Dong Thap provinces, there were 516/1,285 surveyed cattle infected with LSD, accounting for 40.16%. The ratio of cattle disease in Tra
Vinh was 41.46% and in Dong Thap was 38.46% (similarity with P=0.477). The cattle were infected with LSD depending on age, husbandry methods, and gender. The mortality rate was 9.11%. The common symptoms of LSD cattle included fever, multiple skin nodules, tired, inverted conical zone of necrosis, face, brisket, and leg edema. The risk factors affecting to the disease included the cattle household farms were close to each other (<100m), near markets (<150m), there was not insect nets, regularly disinfecting, humans and arthropod insects as flies and mosquitoes transferred pathogen.
The genetic characteristics of the LSD virus circulating in Tra Vinh and Dong Thap provinces were 100% similar to those of the virus strains previously determined in Viet Nam and in Xinjiang (China).