Reperant, L.A.

virus influenza infection fluenza hpaiv h 5n fluenza viruses tract transmission hpaiv influenza viruses tissue disease fluenza virus influenza virus population 0/4 human vaccination protein receptor pandemic antigen model study binding epithelial cells inoculated lpaiv lesion epithelial species number tropism animal expression poultry 1 dpi table pathogenicity vaccine dynamic period blood immunity alveolar organ response titer antigen expression virology compartment route subtype group journal region ph 1n increase influenza vaccination level barrier control migration period corticosterone influenza virus infections state 4 dpi 0.5 figure influenza virus infection virus titers sialic acids epithelium migration result swine virus antigen expression knots inoculated value change