title: [Epidemiological effectiveness of anti-influenza monovalent vaccine A2].
mesh_terms: D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*
chemical_list: D007252:Influenza Vaccines
keywords: INFLUENZA/prevention and control
vernacular_title: Epidemiologicheskaia effektiynost' monovalentnoi grippoznoi vaktsiny A2.