title: Twenty-seven students ill in suspected flu outbreaks in Hong Kong.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks; D005260:Female; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D008297:Male