帕萨迪纳报告今年首两例西尼罗病毒人类病例：全州病例已达452例并有29人死亡，卫生局呼吁清积水防蚊咬
加利福尼亚州洛杉矶县帕萨迪纳市公共卫生局10月29日报告，该市今年出现首两例西尼罗病毒人类病例。两例均符合临床与初步实验室标准，确认检测仍在进行中。帕萨迪纳上一次报告确诊病例是在2025年。
州级数据显示，截至10月23日，加州今年已报告452例西尼罗病毒病例、29人死亡，涉及24个县，其中洛杉矶县占251例。相比之下，去年同期全州只有67例、涉及15个县，今年的传播强度明显更高。
市卫生官 Parveen Kaur 医师与公共卫生主任 Manuel Carmona 提醒，西尼罗病毒由蚊子传播，多数感染者没有症状，但少数人会发展为脑炎等重症，长者与免疫力低下者风险最高。居民应每周倾倒一次庭院与阳台的积水，丢弃会积水的闲置容器，及时修补纱窗，外出时使用含避蚊胺（DEET）或派卡瑞丁成分的驱蚊剂。
发现死鸟可拨打加州西尼罗病毒热线 1-877-WNV-BIRD 报告，死鸟监测是追踪病毒活跃区域的重要手段。卫生局表示将与洛杉矶县及州卫生部门继续共享监测数据。
Pasadena, California: City Reports Its First Two West Nile Virus Cases of the Year as Statewide Cases Reach 452 With 29 Deaths
The Pasadena Public Health Department, in the City of Pasadena, Los Angeles County, California, reported the city's first two human cases of West Nile virus this year on October 29. Both cases meet clinical and preliminary laboratory criteria, with confirmatory testing still pending. Pasadena last reported a confirmed case in 2025.
Statewide data show that as of October 23, California had recorded 452 West Nile virus cases and 29 deaths this year across 24 counties, including 251 cases in Los Angeles County. By comparison, there were only 67 cases in 15 counties statewide at the same point last year, indicating markedly more intense transmission this season.
Health Officer Dr. Parveen Kaur and Public Health Director Manuel Carmona reminded residents that West Nile virus is spread by mosquitoes. Most infections cause no symptoms, but a small share develop severe illness such as encephalitis, with older adults and people with weakened immune systems at highest risk. Residents should dump standing water in yards and on balconies weekly, discard unused water-holding containers, repair window screens, and use repellents containing DEET or picaridin outdoors.
Dead birds can be reported to California's West Nile hotline at 1-877-WNV-BIRD; dead bird surveillance is a key tool for tracking where the virus is active. The health department said it will continue sharing surveillance data with Los Angeles County and state health officials.
来源：GSM·美国（原文链接）
图片来源：叮咬人皮肤的蚊子（资料图）。Wikimedia Commons，CC BY。 / A mosquito feeding on human skin (file photo). Via Wikimedia Commons, CC BY.
