Influenza viruses(IFV)are the pathozens that cause influenza.Influenza is an acute respiratory infection caused bv influenza A.B viruses. which is highly contagious and spread fastshort incubation period,high incidence. Influenza A virus often appears in an epidemic form, which can cause a worldwide influenza pandemic. It is widely distributed in animals,and canalso cause influenza epidemics and cause a large number of animal deaths in animals. Influenza B virus often causes local outbreaks and does not cause a worldwide pandemic of influenza.Influenza C viruse mainly appears in scattered form, mainly affecting infants and young children,and generallydoes not cause epidemics.Therefore,it has relatively large clinical significance for the detection.
