title: [Contribution to the problems of long-term epidemiologic studies of acute viral respiratory diseases (ARD). I. Significance of longitudinal studies of acute respiratory diseases for the detection of influenza viruses in the pre-epidemic stage].
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003470:Culture Media; D003604:Czechoslovakia; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007251:Influenza, Human / Q000453:epidemiology; D008297:Male; D009975:Orthomyxoviridae / Q000302:isolation & purification*; D009976:Orthomyxoviridae Infections / Q000453:epidemiology; D012141:Respiratory Tract Infections / Q000175:diagnosis / Q000453:epidemiology*; D014777:Virus Diseases / Q000453:epidemiology* / Q000276:immunology
chemical_list: D003470:Culture Media
vernacular_title: Prispĕvek k problematice dlouhodobých epidemiologických studii akutních virových respiracnich onemocnĕni (ARO). I. Vyzham longitudinálnich studií akutních respiracnich onemocnĕní pro záchyt chripkových virů v predepidemickém období.