Before the H1N1 pandemic in 2009, the influenza A (H1N1) virus had never been identified as a cause of infections in people. Genetic analyses of this virus have shown that it originated from …

2017年1月13日 · The Committee has previously reviewed data from studies on the use of the pandemic influenza vaccine (monovalent A (H1N1)pdm09 vaccine) in Finland, Sweden, …

On 16 January 2024, Brazil notified the World Health Organization (WHO) of a laboratory-confirmed human infection with swine-origin influenza A(H1N1) variant (v) virus, in the …

2010年4月1日 · As of 28 March 2010, worldwide more than 213 countries and overseas territories or communities have reported laboratory confirmed cases of pandemic influenza H1N1 2009, …

2010年6月19日 · As of 27 June, worldwide more than 214 countries and overseas territories or communities have reported laboratory confirmed cases of pandemic influenza H1N1 2009, …

On 11 May 2022, Germany notified WHO of one laboratory-confirmed human case of infection with a swine-origin influenza A(H1N1) virus in North Rhine-Westphalia, in the west of …

疫情速览 2023年6月7日，巴西向世界卫生组织（世卫组织）通报了在巴拉那州内陆地区发生的一例经实验室确诊的人感染猪源甲型H1N1流感变异病毒的致命病例。 此前曾报告过人感染甲 …

2024年9月4日 · Influenza A (H1) viruses circulate and cause disease in swine populations in most regions of the world. Of the many subtypes, A (H1N1), A (H1N2), and A (H3N2) are major …

2023年10月3日 · WHO fact sheet on avian influenza: includes key facts, definition, clinical features, antiviral treatment, risk factors for human infection, human pandemic potential, WHO …

2023年9月13日 · Influenza A (H1) viruses are enzootic in swine populations in most regions of the world. When an influenza virus that normally circulates in swine is detected in a person, it is …