title: Acute respiratory infection: a global challenge.
mesh_terms: D000208:Acute Disease; D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D005544:Forecasting; D006801:Humans; D007223:Infant; D012141:Respiratory Tract Infections / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control / Q000628:therapy*