influenza a H1 n1 (2009): clinical spectrum of disease among adult patients admitted to a regional hospital in Singaporec, Tee a, au V, raghuram J, oh H M l, Fock K M, Teo e K

introduction : The worldwide spread of i nfluenza a H1n1 (2009) has proceeded at an unprecedented rate, with the World Health o rganization rapidly raising its influenza pandemic alert to phase six. We describe the disease spectrum of H1 n1 (2009) to aid the triaging and identification of patients at risk.