Stock Photo - INFLUENZA A VIRUS<BR>Influenza virus A. Chicken flu virus. Influenza virus. Orthomyxoviridae family of viruses. The influenza virus causes the contagious respiratory infection and measures 100 nanometers in diameter on average. Viral particles evolve from one localized, seasonal form to another, occasionally causing international epidemics. Illustration based on electron microscope magnification at 150000x.

Stock Photo: INFLUENZA A VIRUS<BR>Influenza virus A. Chicken flu virus. Influenza virus. Orthomyxoviridae family of viruses. The influenza virus causes the contagious.

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