Epidemiologic features of influenza in a large urban centre (B.) in Romania, in 1987.
The study presents the peculiarities of influenza evolution in 1987 in a large town in Romania. These features were defined by a complex methodology, based on clinical, epidemiologic and laboratory investigations, used in the active control of the epidemiologic process kinetics. The influenza viruses type A (H1N1 and H3N2) had a major role in the infecting and immunizing contacts in all age groups whereas the influenza virus type B had a reduced circulation. The epidemiologic influenza impact in 1987 is discussed from the point of view of the complex relationships between the antigenic structure of circulating influenza viruses and the anti-influenza immune profile of the population under the influence of extremely complex economic, social and natural factors.
Măgureanu
E
E
Chair of Epidemiology, Institute of Medicine and Pharmacy, Bucharest, Romania.
Busuioc
C
C
Ionescu
V
V
Guguianu
E
E
Stoicescu
A
A
Murgoci
R
R
Dobrescu
A
A
Cristescu
D
D
Morea
M
M
D000367:Age Factors; D000914:Antibodies, Viral / Q000032:analysis; D004196:Disease Outbreaks; D006801:Humans; D009980:Influenza A virus / Q000276:immunology; D009981:Influenza B virus / Q000276:immunology; D007251:Influenza, Human / Q000453:epidemiology* / Q000276:immunology; D012383:Romania; D014505:Urban Population
D000914:Antibodies, Viral