title: [Respiratory viral infections in Rio Grande do Sul. II. Serological surgery].
mesh_terms: D000257:Adenoviridae Infections / Q000453:epidemiology*; D000328:Adult; D001938:Brazil; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D008297:Male; D018184:Paramyxoviridae Infections / Q000453:epidemiology*; D012141:Respiratory Tract Infections / Q000453:epidemiology*; D012698:Serologic Tests
vernacular_title: Viroses respiratorias no Rio Grande do Sul. II. Inquerito sorológico.