Thirty-five human influenza A(H5N1) cases were reported in Cambodia during 2013-2014 after emergence of a clade 1.1.2 reassortant virus. We tested 881 villagers and found 2 cases of pauci- or asymptomatic infection. Seroprevalence after emergence of the reassortant strain (0.2%) was lower than the aggregate seroprevalence of 1.3% reported in earlier studies.
Keywords: Cambodia; H5N1 virus; avian influenza virus; highly pathogenic; humans; influenza; poultry; reassortment; seroepidemiologic study; seroprevalence; transmission; viruses.