The avian flu is a type of influenza virus that occurs naturally in birds. Although this virus can be highly contagious among the bird species, it is rarely transmitted to humans. Currently, close contact with infected poultry has been the primary source of human infection for avian flu. Possible symptoms in humans may include fever, coughing, sore throat, eye infections, viral pneumonia, and other life-threatening complications. As this type of virus could cause a pandemic, researchers are currently working on vaccines to protect humans against the avian flu.
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