Epidemiological analysis of acute respiratory diseases (ARD) of viral etiology in the Czech Socialist Republic (CSR)) and German Democratic Republic (GDR) over the period 1979 to 1984.

An analysis is made of the ARD reported in CSR and the GDR over the period July 1st, 1979 to June 30th, 1984. During that time, there were 27,810,000 cases reported in CSR in the framework of ARD epidemiological surveillance, representing 2.67 cases per one inhabitant, whereas in the GDR, the total number of reported ARD was 28,900,000 yielding 1.

Incidence of influenza C virus in Czechoslovakia and German Democratic Republic.

Out of 1091 and 2275 influenza virus strains isolated in Czechoslovakia (C.S.S.