The incidence of antibodies to influenza C virus in Egyptian sera.
D000293:Adolescent; D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D009975:Orthomyxoviridae / Q000276:immunology*
D000914:Antibodies, Viral