Welkers, M.R.A.

infection virus influenza disease study ph 1n patient surveillance children future vaccine group response mortality pneumonia pandemic country illness population macrae group llc hrv infection model severity conference syncytial virus level scene swine cause health symposium treatment death hayden research university osterhau monto species department science asthmatic otitis media disease severity syncytial subject result ph 1n infections oseltamivir h 5n illness transmission london welker outbreak animal exacerbation sutherland silver spring icu admission estimate clade burden virol admission epithelial cells cytokine adult inflammation event laninamivir disease progression syncytial virus infection poultry ph 1n infection kenya sample birth cohort symptom swine industry virus isolation methods