Epidemiological analysis of acute respiratory disease (ARD) and characteristics of the influenza epidemic in Bohemia during the season 1986/1987.
The authors analyze the findings of epidemiological and virological surveillance of ARD in Bohemia during the season 1986/1987. In all, 57.5% of the Czech population was affected by acute respiratory disease (ARD). There were 5,950,832 cases reported, 124,444 complications (2.1% of the overall morbidity rate) and 5,374 deaths due to influenza, bronchitis, pneumonia and chronic pulmonary affection. The influenza epidemic commenced during the 48-th calendary week (CW) and lasted 5 weeks till the 52-nd CW. The epidemic was due to an influenza virus strain of the subtype A(H1N1) antigenically related to the drift variant A (Singapore) 6/86. Within an extremely short period of the epidemic, 1,094,865 influenza cases were reported and 22,313 cases of complications. 10.7% of the CSR population were affected during the epidemic in whose etiology noninfluenza respiratory viruses were significantly implicated, especially adenoviruses (41.7%) and the RS virus (26.9%). There was no excessive mortality in the course of the epidemic. The authors discuss the atypical nature of this particular influenza epidemic and the etiological role of respiratory viruses.
Institute of Hygiene and Epidemiology, Prague, Czechoslovakia.
J
J
Stanek
F
F
Heinz
B
B
Tůmová
L
L
Kunzová
D
D
Fedová
J
J
Hrusková
V
V
Strízová
G
G
Stumpa
E
E
Svandová
D000208:Acute Disease; D000256:Adenoviridae; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003604:Czechoslovakia / Q000453:epidemiology; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D009980:Influenza A virus; D007251:Influenza, Human / Q000453:epidemiology*; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D012621:Seasons