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Opisthorchis viverrini (OV) is a significant public health problem in Thailand, and OV reinfection poses a serious risk of cholangiocarcinoma with little evidence of a decrease. While numerous studies have explored OV reinfection and prevalence, most have been limited to short study period. Therefore, there is a need for long-term investigations to gather sufficient evidence.
Saengsawang et al. (Thu,) studied this question.
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