This is a prospective specimen collection study targeting patients presenting with Influenza Like Illness (ILI) and/or Acute Respiratory Infection (ARI) in an out-patient setting. A non-invasive, user friendly sampling technique, using midturbinate flocked swabs will be used. These nasal swabs will be collected in different volumes of viral transport media (0.5mL and 3.0mL), for different dilution range of the viruses present in the collected biological specimen. The collection of nasal swabs samples will support the optimization of point of care detection methods for respiratory viruses responsible for ILI and/or ARI.

Inclusion Criteria:

• Male or Female
• All Ages
• Valid Informed Consent and/or Assent, where applicable
• Onset of ILI and/or ARI within the last 3 days (≤ 72h)
• Patient presented with ILI and/or ARI

Exclusion Criteria:

• Invalid Informed Consent and/or Assent
• Onset of ILI and/or ARI was > 3 days (> 72 h)
• Patient did not presented with neither ILI or ARI
• Patient received intranasal attenuated influenza virus in last 3 weeks (example FluMist®, Fluenz®)
• Patient received treatment with influenza direct antivirals in the last 7 days

Patients with ILI will present with a sudden onset of symptoms and at least one of the following four symptoms: fever or feverishness, malaise, headache, myalgia and at least one of the following three respiratory symptoms: cough, sore throat, shortness of breath.

Patients with ARI will present with a sudden onset of symptoms and at least one of the following four respiratory symptoms: cough, sore throat, shortness of breath, coryza and the GP's judgment that the illness is due to an infection.