气温超过70华氏度时,西尼罗病毒会在库蚊体内快速复制,蚊子叮咬时即可传播。今年加州夏季与秋季温暖潮湿,西尼罗病毒活动达五年来最高。加州公共卫生部数据显示,截至11月6日,全州已有528人重症感染、32人死亡。
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L.A. Had Its Worst Mosquito Year This Decade. El Niño Could Make It Even Worse
When temperatures rise above 70 degrees, tiny West Nile viral particles begin to rapidly replicate in the gut of Culex mosquitoes, which then go hunting for their next “blood meal,” injecting virus-laden saliva into their prey when they feast. This year, California’s warm, wet summer and fall produced the most West Nile activity in five years. As of Nov. 6, the virus has seriously sickened 528 people and killed 32, according to the California Department of Public Health. Most people
Pasadena Now · 采集 2026/11/10 06:05
When temperatures rise above 70 degrees, tiny West Nile viral particles begin to rapidly replicate in the gut of Culex mosquitoes, which then go hunting for their next “blood meal,” injecting virus-laden saliva into their prey when they feast. This year, California’s warm, wet summer and fall produced the most West Nile activity in five years. As of Nov. 6, the virus has seriously sickened 528 people and killed 32, according to the California Department of Public Health. Most people