标题：中疾控专家警告：曾患甲流仍有可能感染乙流
中新网1月14日电，国家卫健委今日召开新闻发布会，中国疾控中心病毒病所国家流感中心主任王大燕在会上表示，同一个流感流行季，通常都会出现流感病毒的不同型别和亚型的共同流行，只是占比不同。她强调，得了甲型流感后产生的免疫反应，对乙型流感不能提供有效的免疫保护。
王大燕主任详细解释，流感病毒有多种不同的型别和亚型，它们在人群中的流行情况会随着季节和环境的变化而变化。在同一个流感流行季中，可能会有多种流感病毒的同时流行，只是各种病毒的占比会有所不同。
她进一步指出，流感病毒的型别和亚型之间没有交叉免疫。这意味着，如果一个人曾经感染过甲型流感并产生了免疫反应，这种免疫反应并不能为他提供对乙型流感的有效保护。因此，即使曾经患过甲流的人，也有可能再次感染乙流。
王大燕主任的这一警告，旨在提醒公众在流感高发季节加强防护，尤其是对于有慢性疾病或者免疫力较弱的人群，更需要注意防病保健，避免流感的发生。同时，她也呼吁医疗机构和相关部门加强对流感病毒的监测和研究，以便更好地防控流感疫情。
英语如下：
Title: Expert Warns: Recovered from H1N1 Influenza Can StillTitle: Expert Warns: Recovered from H1N1 Influenza Can Still Be Infected with H3N2!
Keywords: Influenza Virus, Immune Protection, Influenza Season
Content: Title: National Health Commission Experts Warn: Those Who Have Had H1N1 Influenza Can Still Be Infected with H3N2
China News Service, January 14th – The National Health Commission held a press conference today. Wang Dayan, Director of the National Influenza Center at the Chinese Center for Disease Control and Prevention, stated at the meeting that different types and subtypes of influenza viruses usually co-circulate during the same flu season, but their proportions vary. She emphasized that the immune response generated after contracting H1N1 influenza does not provide effective protection against H3N2 influenza.
Director Wang explained in detail that there are various types and subtypes of influenza viruses, and their prevalence in the population changes with seasonal and environmental factors. During the same flu season, multiple influenza viruses may co-circulate, but their proportions will differ.
She further pointed out that there is no cross-immunity between the types and subtypes of influenza viruses. This means that if a person has previously contracted H1N1 influenza and developed an immune response, this immunity does not provide effective protection against H3N2 influenza. Therefore, even those who have had H1N1 influenza before can still be infected with H3N2.
Director Wang’s warning is aimed at reminding the public to strengthen protection during the flu season, especially for those with chronic diseases or weak immune systems, who need to pay more attention to disease prevention and health care to avoid flu outbreaks. At the same time, she also calls on medical institutions and relevant departments to strengthen monitoring and research on influenza viruses, so as to better prevent and control flu epidemics.
【来源】http://www.chinanews.com/sh/2024/01-14/10145861.shtml
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