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Field investigation finds effective vector control measures are crucial to prevent local chikungunya transmission after imported cases.
In regions with established Aedes mosquito populations, imported CHIKF cases may trigger import-driven local transmission if vector control measures are delayed or inadequately implemented. During epidemic seasons, upon identifying imported cases, public health authorities should immediately map the patients' viremic-phase activity areas, delineate high-risk zones, and implement targeted mosquito elimination measures.
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Wu et al. (2026) studied this question.
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