This study will assist in the early detection of influenza resistant to antivirals and will
monitor the clinical outcome of adults and children infected with influenza according to
subtype and susceptibility. Participants clinically diagnosed with influenza will undergo a
rapid diagnostic test and viral sampling at Baseline and on Days 3, 6, and 10. Participants
will be clinically managed according to local guidelines and the decision to treat/not treat
will be at the discretion of the Investigator.