title: Children could be worst hit by flu this season.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007252:Influenza Vaccines / Q000600:supply & distribution / Q000627:therapeutic use; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control; D013019:South Africa / Q000453:epidemiology
chemical_list: D007252:Influenza Vaccines