Influenza Virus

Influenza virus (インフルエンザウイルス) is the cause of influenza. In virus classification, influenza viruses are RNA viruses that make up four of the seven genera of the family Orthomyxoviridae.

Appearance
An influenza virion is depicted as a red ball with grey surface protein-like structures sticking out. When a cell is infected, it turns into a zombie with green skin, and a virion latches onto its head like a cap.