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The first influenza virus – H1N1 – has been proven in Sofia, said Professor Todor Kantardjiev, director of the National Center for Contagious and Parasitic Diseases and the epidemiologist.
"The National Reference Center for Influenza Center has been revealed to be the first influenza virus for this season.The influenza virus has been proven in maternal clinical material and its 6-year-old child The virus is characterized by the H1N1 or pandemic, or Californian, or as some call it "pork," Professor Kantardzhiev said, quoted by Focus.
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