宾夕法尼亚州卫生部门报告了第四例麻疹相关死亡病例134，这是美国十年来该疾病致死人数最多的一次疫情34。最新死亡者为一名18岁的未接种疫苗女性4，诊断为脑脊髓炎2。该州已报告接近700例麻疹确诊病例24，为自1992年以来最严重的麻疹爆发年份2。众议院民主党人已要求美国疾病控制中心就该疫情做出回应3。
公共卫生专家警告宾夕法尼亚州的麻疹病例激增是一个警示信号3。每1,000例麻疹患者中有1至3人因相关并发症死亡2，五分之一的感染者需要住院治疗2。麻疹腮腺炎风疹疫苗可预防97%的麻疹病例2。美国卫生部长罗伯特·肯尼迪曾领导过反疫苗倡导团体2，上台后推翻了联邦疫苗政策并对麻疹腮腺炎风疹疫苗做出多项误导性声明2，导致儿童疫苗接种率缓慢下降2。
Pennsylvania has confirmed its fourth measles-related death, marking the most fatalities from the disease in the United States in decades.134 The latest victim was an 18-year-old unvaccinated female from Mifflin County who died from encephalitis, a measles complication.24 This represents a significant escalation in a public health crisis that has seen the state record nearly 700 confirmed measles cases.24
The outbreak constitutes the most severe measles epidemic in Pennsylvania since 1992.2 Medical experts warn that measles kills between one and three people per 1,000 infected individuals due to related complications, and approximately one in five infected people require hospitalization.2 The measles, mumps, and rubella vaccine is 97 percent effective at preventing measles infection.2 Public health officials have characterized the surge in Pennsylvania cases as a warning signal for the nation.3
The outbreak has prompted congressional action, with House Democrats requesting that the Centers for Disease Control and Prevention provide an explanation regarding the deaths.3 Health Secretary Robert F. Kennedy, who previously led anti-vaccine advocacy organizations, has reversed federal vaccine policies and made multiple misleading statements about the MMR vaccine since taking office, contributing to a gradual decline in childhood vaccination rates.2
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