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[4] [5] Major outbreaks of H1N1 strains in humans include the 1918 Spanish flu pandemic, the 1977 Russian flu pandemic and the 2009 swine flu pandemic, all of which were caused by strains of A(H1N1) virus which are believed to have undergone genetic reassortment. [6]
Since then, only 50 such transmissions have been confirmed. These strains of swine flu rarely pass from human to human. Symptoms of zoonotic swine flu in humans are similar to those of influenza and influenza-like illness and include chills , fever , sore throat , muscle pains , severe headache , coughing , weakness , shortness of breath, and ...
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 pandemic involving the H1N1 virus (the first being the 1918–1920 Spanish flu pandemic and the second being the 1977 Russian flu).
Over 160,000 people this season have landed in the hospital from flu complications, CDC estimates. More than 6,600 have died. Here's the symptoms.
"Get tested to know what virus you have, as the antiviral treatments are different." People should take measures to avoid exposure to winter illnesses and seek treatment if they become ill ...
As you dive into your New Year’s resolutions, taking precautions to protect yourself from a quartet of infectious diseases can lessen your odds of starting off 2025 sick. (gilaxia/Getty Images)
The virus is a novel strain of the influenza virus, [2] for which existing vaccines against seasonal flu provided no protection. A study at the U.S. Centers for Disease Control and Prevention (CDC) published in May 2009 found that children had no preexisting immunity to the new strain but that adults, particularly those over 60, had some degree of immunity.
“There are several things you can do to avoid infecting other people,” says Dr. Chung. ∫You should wait around 48 hours after your symptoms have resolved before returning to school or work ...