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).

[Acute viral respiratory diseases as a cause of work disability in miners during an inter-epidemic period].

During the interepidemic period between October 1 and November 20 1987 96 miners from a coal mine were examined who suffered from diseases of the upper airways which caused their work incapacity. In paired sera the rise of antibodies against M. pneumoniae and respiratory viruses were examined (adeno, influenza virus A and B, Coxsackie A21, corona 229E and OC43, parainfluenza type 1, 2 and 3, rhino type 13 and 44, RS).

[Specific and nonspecific indicators of activation of influenza viruses before an epidemic caused by influenza viruses subtype A/H3N2 and type B in Czechoslovakia in 1986].

The authors submit an aetiological and epidemiological analysis of the influenza epidemic which occurred in the CSR between the 4th and 14th week of 1986 and was caused by the influenza virus subtype A/H3N2/ and type B. The epidemic affected a total of 27.1% of the population, in the age group of 0-5 years 63.

Occurrence and aetiology of acute respiratory diseases: results of a longterm surveillance programme.

Totals of 58,661,000 acute respiratory disease (ARD) cases, 1,376,651 bronchitis and pneumonia complications, and 93,042 deaths from influenza, bronchitis, pneumonia or chronic pulmonary affection were notified during 11 years of ARD surveillance from 1975 to 1986. All ARD seasons started with the first phase in September-December; this increase in morbidity was caused chiefly by adenoviruses, parainfluenza viruses, rhinoviruses and M. pneumoniae.