The 2009 swine flu pandemic, caused by the H1N1/swine flu/influenza virus and declared by the World Health Organization (WHO) from June 2009 to August 2010, was the third recent flu …

2019年6月11日 · Globally, 80 percent of (H1N1)pdm09 virus-related deaths were estimated to have occurred in people younger than 65 years of age. This differs greatly from typical …

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 …

2025年3月6日 · In the U.S., there have also been a few dozen human cases of H5N1 bird flu and one known human fatality from the virus. But cases among people have been rare, appearing …

2019年5月8日 · The United States Government declared 2009 H1N1 a Public Health Emergency of International Concern and CDC began releasing 25% of antiviral drugs needed to treat this …

2009年9月10日 · As of 19 July, 137,232 cases of the H1N1 influenza strain have been officially confirmed in 142 different countries, and the pandemic unfolding in the Southern hemisphere …

2025年3月21日 · Influenza A (H1N1)pdm09 and A (H3N2) were the predominant viruses reported this week. For regional and state level data and age group distribution, please visit FluView …

2025年2月26日 · The number of influenza cases is surging across the United States, putting significant strain on many hospitals. We asked the experts to explain what makes this year's …

2013年3月30日 · The median number of weeks from first detection of A (H1N1)pdm09 to peak week was 25 weeks (20–27 IQR) in temperate and 9 weeks (6–16 IQR) in tropical–subtropical …

Post-peak Period As Influenza A (H1N1) cases gradually declined, some countries readjusted their pandemic response levels as well as their measures for virus prevention, control, and …