美国疾病控制与预防中心（CDC）于本周二报告了本轮麻疹疫情中的第二例死亡病例1。截至9月24日，全国已确认3659例确诊麻疹病例1，创下自1991年以来的年度最高纪录1。此外，美国已记录176例住院病例1，麻疹死亡率约为千分之一至三1。
宾夕法尼亚州成为此轮疫情的重灾区，报告超过900例病例和4例死亡1。该州在过去七天内新增114例病例，其中三分之一为18岁以下的儿童1。值得注意的是，宾夕法尼亚州报告的死亡病例并未纳入CDC的国家统计数据中1。
接种两剂MMR疫苗能提供最佳保护1。麻疹曾于2000年在美国被宣布消灭1，但近年疫情已再度出现。
The Centers for Disease Control and Prevention confirmed a second measles death in the United States on Tuesday as the current outbreak continues to escalate across the country 1. As of September 24, the nation has recorded 3,659 confirmed measles cases, surpassing the total for any single year since 1991 1.
Pennsylvania has emerged as the epicenter of the outbreak, reporting more than 900 cases and four deaths, though the CDC's national figures do not include the state's fatalities 1. The state has documented 114 new cases over the past seven days, with approximately one-third affecting children under 18 years old 1. Nationwide, 176 hospitalizations have been recorded 1. The fatality rate for measles ranges from one to three deaths per thousand cases 1.
The outbreak marks a significant public health development in the United States, which eliminated measles in 2000 1. Health authorities emphasize that two doses of the MMR vaccine provide optimal protection against the disease 1.
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