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Influenza A

Influenza A (H1N1) is an acute respiratory infectious disease. Its pathogen is a new type of influenza A (H1N1) virus, which spreads among people. Different from previous or current seasonal influenza viruses, the virus strain contains gene fragments of three influenza viruses: swine influenza, avian influenza and human influenza. People are generally susceptible to influenza A (H1N1) virus and can infect people. The early symptoms of people infected with influenza A are similar to those of ordinary influenza, including fever, cough, sore throat, physical pain, headache, chills and fatigue. Some will also have diarrhea or vomiting, muscle pain or fatigue, red eyes, etc. Since 2009, influenza A (H1N1) has become a global pandemic. In August 2010, who announced that the pandemic period of influenza A (H1N1) had ended.


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