搜尋結果
3 天前 · The virus, H1N1, remained endemic, occasionally causing more severe or otherwise notable outbreaks as it gradually evolved over the years. The period since its initial appearance in 1918 has been termed a "pandemic era", in which all flu pandemics since its emergence have been caused by its own descendants. [171]
- February 1918 – April 1920
- Worldwide
- 25–50 million (generally accepted), other estimates range from 17 to 100 million
- Influenza
2024年5月6日 · After the H1N1 outbreak, countries restricted travel and banned the imports of pork products, which affected their trade with Mexico, the US, and the rest of the global economy. Unwarranted concerns based on inappropriate designations also led to official and unofficial bans by 17 countries on US pork and pork product imports, with China maintaining its ban until mid-December 2009 [ 54 ].
2024年5月9日 · Government agencies have been monitoring the latest bird flu outbreaks since Jan. 12, 2022, when a Northern Shoveler duck in Hyde County, North Carolina, tested positive for a Eurasian strain of ...
2024年4月25日 · Overview. This update covers avian influenza viruses (AIV) with zoonotic potential occurring worldwide, i.e. H5Nx, H7Nx high pathogenicity avian influenza (HPAI) viruses and H3N8, H5Nx, H6N1, H7Nx, H9N2, H10Nx and H11 low pathogenicity avian influenza (LPAI).
2 天前 · Updated May 9, 2024. H5N1 bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and U.S. dairy cows with one recent human case in a U.S. dairy worker. While the current public health risk is low, CDC is watching the situation carefully and working with states to monitor people with animal exposures.
2024年5月3日 · Hasta el momento, el virus AH5N1 se ha encontrado en ocho granjas comerciales: cuatro de Sonora, una de Nuevo León, dos de Jalisco y, recientemente, una en Yucatán, así como en tres explotaciones de traspatio en Chiapas, Chihuahua y Estado de México, con un total de 1.4 millones de aves afectadas, lo que representa el 0.07 por ciento de la parva...
2024年4月27日 · Para la protección de la población mexicana, el sector Salud, incluido el Instituto Mexicano del Seguro Social (IMSS) implementan la Campaña Nacional de Vacunación Estacional 2021-2022, que ya arrancó y se extenderá hasta el 31 de marzo de 2022, fecha en la que se calcula se habrán aplicado más de 32 millones de dosis.
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