Influenza activity in Czechoslovakia and the USSR, 1980-1985.
J Hyg Epidemiol Microbiol Immunol
; 30(4): 387-93, 1986.
Article
en En
| MEDLINE
| ID: mdl-3805712
ABSTRACT
Between 1980 and 1985, Czechoslovakia had experienced 4 and the USSR 3 major influenza outbreaks. Of the 3 epidemic outbreaks in the USSR, 2 were associated with influenza B virus (in the 1980/81 and 1983/84 seasons) and 1 with influenza A virus of the H3N2 subtype. In the USSR, influenza A (H1N1) virus never predominated as a cause of epidemic during the 5 years period. In Czechoslovakia, 2 epidemics (in the 1980/81 and 1983/84 seasons) were due to influenza A (H1N1) virus. The epidemic in the 1981/82 season had two waves of unequal heights and a mixed type B and subtype A (H3N2) etiology; a two-wave epidemic associated with isolates of influenza A (H1N1) and influenza B viruses was also recorded in the 1983/84 season. The influenza A (H3N2) epidemic in 1983 was of explosive character. All influenza viruses circulating in the two countries between 1980 and 1985 were of the same antigenic profile, but were isolated from the epidemics that occurred in different influenza seasons. The virological surveillance revealed strains of virus closely related to drift variants detected from outbreaks in 1977-1979 and the new variants A/Chile 1/83, A/Philippines 2/82, A/Caen 1/84 and B/USSR 100/83.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Brotes de Enfermedades
/
Gripe Humana
Tipo de estudio:
Etiology_studies
Límite:
Humans
País/Región como asunto:
Europa
Idioma:
En
Revista:
J Hyg Epidemiol Microbiol Immunol
Año:
1986
Tipo del documento:
Article