Subi, K K Mixed respiratory viral infections during influenza A epidemics. [electronic resource] - Journal of hygiene, epidemiology, microbiology, and immunology 1981 - 270-6 p. digital Publication Type: Journal Article ISSN: 0022-1732 Subjects--Topical Terms: Adenovirus Infections, Human--complicationsDisease OutbreaksEstoniaHumansInfluenza, Human--complicationsParamyxoviridae Infections--complicationsRespiratory Syncytial VirusesRespiratory Tract Infections--complicationsRespirovirus Infections--complicationsVirus Diseases--complications