title: Upper respiratory infections.
mesh_terms: D006801:Humans; D009976:Orthomyxoviridae Infections / Q000635:transmission; D012141:Respiratory Tract Infections / Q000209:etiology* / Q000517:prevention & control / Q000635:transmission; D014611:Vaccination; D014777:Virus Diseases / Q000517:prevention & control / Q000635:transmission