Influenza

Laboratory methodologies for testing the antiviral susceptibility of influenza viruses

November 2012

The need for surveillance of antiviral susceptibility of influenza viruses has grown in recent years. The laboratory methodologies described below have been developed and reviewed by an Expert Working Group on Antiviral Susceptibility for the WHO Global Influenza Surveillance and Response System (GISRS). They are intended for National Influenza Centres in GISRS and other laboratories that test for influenza antiviral susceptibility.

M2 ion channel inhibitor

Neuraminidase inhibitor (NAI)

Reference viruses for validation and controls