... nucleoprotein and matrix protein [21]. Influenza A and B viruses commonly cause disease in humans [21]. The Influenza A virus has surface antigens, but diverse subtype-specific, haemagglutinin (HA) ... The Discovery Series: Quantity One software BioRad, Hercules, CA). Cytokine determination Serum cytokines [Interleukin-2 (IL-2), Interferon gamma (IFN-γ), Interleukin-4 (IL-4), Interluekin-10 ... virus causes annual epidemics, which generally occur in the winter months in the Northern hemisphere [21], and is spread from person to person by either direct contact with a virus infected individ-ual,...