美国疾控中心周报：流感入院一周增27%至6,100人，本季首例儿童流感死亡已报告
美国疾病控制与预防中心（CDC）10月30日发布最新一期流感监测周报（FluView，统计至10月24日当周）：全美流感活动仍处低位，但在多地上升，且高于往年同期通常水平。医院报告的实验室确诊流感入院人数达6,100人，较前一周的4,811人增加27%。
CDC的 FluSurv-NET 住院监测网络当周报告的住院率为每10万人1.3例；计入报告延迟修正后，估计实际住院率在每10万人1.9至2.5例之间，是2010-11流感季以来同期（第42周）的最高水平。公共卫生实验室分型的甲型流感病毒中，98.9%为甲型H1N1pdm09病毒。
周报同时报告了2026-27流感季首例儿童流感相关死亡：这名儿童于10月10日当周死亡，感染与H1N1病毒相关，死讯经调查核实后于本周上报。另有一例本周报告的儿童死亡发生在上一流感季，使2025-26季的儿童死亡总数增至199例。
CDC估计，本季至今全美至少已有100万例流感病例、16,000人住院、900人死亡。CDC提醒，流感季提前升温并不必然意味着今冬高峰会更高或病情更重，现有数据还不能判断本季的严重程度与高峰时间。
CDC建议，年满6个月的人群除极少数例外外，每年接种流感疫苗；出现流感症状且属重症高风险的人群，应尽早联系医护人员，评估是否需要抗病毒治疗。
CDC Weekly Report: Flu Admissions Jump 27% in a Week to 6,100, and the Season's First Pediatric Flu Death Is Reported
The U.S. Centers for Disease Control and Prevention (CDC) released its latest FluView weekly influenza report on October 30, covering the week ending October 24. Seasonal flu activity remains low nationally but is increasing in many parts of the country and is higher than typically observed at this time of year. Hospitals reported 6,100 laboratory-confirmed flu admissions, up 27 percent from 4,811 the week before.
In the CDC's FluSurv-NET hospitalization network, the observed weekly rate was 1.3 per 100,000 people; after adjusting for reporting delays, the CDC estimates the true rate at between 1.9 and 2.5 per 100,000, the highest for Week 42 since the 2010-11 season. Of the influenza A viruses subtyped by public health laboratories, 98.9 percent were A(H1N1)pdm09.
The report also records the first influenza-associated pediatric death of the 2026-27 season. The child died during the week ending October 10, in a death associated with an H1N1 virus, and the case was reported this week after investigation. Another pediatric death reported this week occurred during the previous season, bringing the 2025-26 season's pediatric death total to 199.
The CDC estimates that so far this season there have been at least 1 million flu illnesses, 16,000 hospitalizations and 900 deaths in the United States. The agency cautions that an earlier-than-usual rise does not necessarily lead to a higher seasonal peak or greater overall severity, and that current data cannot yet predict how severe this season will be.
The CDC recommends an annual flu vaccine for everyone aged six months and older, with rare exceptions, and advises people at higher risk who develop flu symptoms to contact a health care provider promptly about antiviral treatment.
来源：GSM·美国（原文链接）
图片来源：一名儿童在诊所接种流感疫苗（资料图）。美国海军 Emily McCamy 摄，公共领域，经 Wikimedia Commons。 / A child receives a flu shot at a clinic (file photo). U.S. Navy photo by Emily McCamy, public domain, via Wikimedia Commons.
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