Genetic structure of Bithynia snails and its implications for targeted control of opisthorchiasis in the Lower Mekong Subregion.

Recent findings by Bunchom et al. reveal distinct mitochondrial lineages of Bithynia siamensis goniomphalos in Champasak, Laos, with important implications for Opisthorchis viverrini transmission. The identification of lineage II, with high haplotype diversity and habitat-specific distribution, underscores the role of snail genetics in shaping local disease dynamics. Drawing parallels from Thailand's successful One Health intervention, this correspondence advocates for integrating lineage-informed mapping and surveillance into regional control programs. Broader genetic monitoring of Bithynia snails across the Lower Mekong Subregion may enhance the precision and effectiveness of liver fluke elimination strategies.