近日，印度南部喀拉拉邦再次暴发尼帕病毒（Nipah virus）疫情，引发全球关注。尼帕病毒是一种人畜共患病毒，主要通过果蝠传播，也可通过受污染的食物或密切接触感染者传播。该病毒致死率高达40%至75%，目前尚无特效药或疫苗。患者常出现发热、头痛、呼吸困难，严重者可发展为脑炎甚至死亡。值得警惕的是，尼帕病毒具备有限的人传人能力，尤其在医疗条件较差的地区，可能造成局部聚集性感染。不过，截至目前，该病毒尚未在全球范围内大规模传播，且人际传播效率较低，主要依赖密切接触。对中国而言，目前尚无本土病例报告。我国已建立完善的传染病监测与应急响应体系，对输入性风险保持高度警惕。公众无需恐慌，但应避免前往疫情高发地区，注意饮食卫生，不食用未经处理的椰枣汁等可能被蝙蝠污染的食物。同时，如出现不明原因发热、神经系统症状，应及时就医并告知旅行史。总体而言，虽然尼帕病毒具有高致病性，但在现有防控体系下，国内风险可控。科学防范、及时预警是保障公众健康的关键。
Recently, an outbreak of Nipah virus has re-emerged in Kerala, southern India, drawing global attention. Nipah virus is a zoonotic pathogen primarily transmitted by fruit bats and can also spread through contaminated food or close contact with infected individuals. With a fatality rate ranging from 40% to 75%, there is currently no specific treatment or vaccine available. Symptoms include fever, headache, respiratory distress, and in severe cases, encephalitis or death.Of concern is the virus’s limited human-to-human transmission capability, which can lead to localized clusters—especially in areas with inadequate healthcare infrastructure. However, large-scale global transmission has not occurred to date, as the virus spreads inefficiently between people and requires close contact.For China, no domestic cases have been reported so far. The country maintains a robust infectious disease surveillance and emergency response system and remains vigilant against imported risks. The public should avoid unnecessary travel to affected regions, practice good food hygiene, and refrain from consuming raw date palm sap or other foods potentially contaminated by bats. Anyone experiencing unexplained fever or neurological symptoms should seek medical care promptly and disclose recent travel history.Overall, while Nipah virus is highly pathogenic, the risk within China remains low and manageable under current public health measures. Scientific prevention and timely alerts are key to safeguarding public health.
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