The 2009 flu pandemic in the United States was caused by a novel strain of the Influenza AH1N1 virus. There is no evidence that it is endemic to pigs or of transmission from pigs to people; instead, the virus spreads from person to person. From April 12, 2009 to April 10, 2010, the CDC estimates there were 60. 8 million cases, 274,304 hospitalizations and 12,469 deaths in the U.S. due to the virus.
About 2009 swine flu pandemic in the United States in brief
The 2009 flu pandemic in the United States was caused by a novel strain of the Influenza AH1N1 virus. There is no evidence that it is endemic to pigs or of transmission from pigs to people; instead, the virus spreads from person to person. From April 12, 2009 to April 10, 2010, the CDC estimates there were 60. 8 million cases, 274,304 hospitalizations, and 12,469 deaths in the U.S. due to the virus. The virus continues to circulate as a seasonal flu virus, and cause illness, hospitalization, and deaths worldwide every year. A follow-up study done in September 2010 showed that the risk of serious illness resulting from the 2009 H1n1 flu was no higher than that of the yearly seasonal flu. The earliest reported cases in the US began appearing in early April 2009, in California. By the end of May, the flu had infected people in all 50 states. As of June 16, the total number of confirmed cases was 27,717 and on June 25, the CDC said there were over one million cases, most of which had not been reported or diagnosed. On December 10, 2009 the CDC reported an estimated 50 million Americans or 1 in 6 had been infected and 10,000 had died. On October 24, and the CDC said more than 1,000 had died from the flu. On January 11, 2010 the Centers for Disease Control and Prevention identified the first A09 swine flu cases in California on April 17, 2009 via the Border Infectious Disease Program for a child, via a San Diego County child.
It was established that the virus was a combination of human, North American swine and Eurasian swine viruses; also known as ‘swine flu’ It was genetically similar to the strain that had previously been known as A09 Swine Flu. The first doses of an H1N2 vaccine were given in October 2009. The CDC distributed vaccines for the flu using mechanisms already in place for its Vaccines for Children program. On February 12, The CDC reported 57 million Americans had been sickened, 257,000 been hospitalized and690 people had died due to flu from April through mid-January. On April 25, the World Health Organization declared a public health emergency of international concern. On June 11, the WHO declared H1 N1 a pandemic on June 11. On August 10,2010, WHO declared an end to the global 2009 H 1N1 influenza pandemic. The WHO estimates that 250,000 to 500,000 people die of seasonal flu annually. For comparison, theCDC estimates the global H1 n1 death toll at 284,000 and the WHO estimates 250,00 to 500,.000 people died of seasonal influenza annually. On September 23, 2009, the CDC reported a reduction of the disease by 59% percent. By October 5, By early June, 15 states had reported fatalities related to or directly occurring from the virus, including California and Texas.
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