Why the study?
Although Indonesia had been recognized as foot-and-mouth disease-free without vaccination since 1990, the virus was detected in disease outbreaks in cattle and goats in May 2022.
The 2022 FMD outbreak in Indonesia, previously disease-free since 1986, was caused by a unique cluster of the ME-SA/Ind-2001e lineage of FMD serotype O viruses.
FMD re-emergence in Indonesia after decades free warrants urgent surveillance; leaves open incursion sources and optimal control measures.
Foot-and-mouth disease (FMD) is a contagious disease affecting cloven-hoofed animals, which has been well-documented as one of the major animal diseases that causes severe economic loss in livestock sectors. The disease is endemic in many countries, particularly in Asia and Africa. Indonesia has been declared a disease-free country since 1986, and the World Organization of Animal Health (WOAH/OIE) recognized Indonesia as an FMD-free country without vaccination in 1990. However, the FMD virus was detected in many disease outbreaks in cattle and goats in Indonesia in May 2022. This study reports the detection and identification of FMD serotype O viruses in Indonesia. Although these viruses appeared to belong to the ME-SA/Ind-2001e lineage, they formed a unique cluster with 95.3% average nucleotide sequence similarity of the FMD VP1 gene to Ind-2001e viruses from other Asia countries. The illegal trade of live animals from endemic areas in Southeast Asia is one of the possible routes regarding the incursion of FMD in Indonesia, however, it requires further investigation.
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Susila et al. (2023) studied this question.
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