[Influenza in 1997].
The number of cases of influenza and influenza-like illness registered in Poland in 1997 amounted to 1,578,494. This number of cases is 41.8% lower when compared with the previous year 1996. The incidence of influenza amounted to 4,084 per 100,000 inhabitants. The number of influenza cases registered in children aged up to 14 years was 557,033. This is 35.6% of total number of cases. The incidence of influenza in this group amounted to 6,828.7 per 100,000 and was 67% higher than total incidence. In the beginning of January 1997 six strains of A (H3N2) influenza virus were isolated in the National Influenza Center WHO, Dept. of Virology, National Institute of Hygiene. These isolates were similar to A/Wuhan/359/95 and A/Johannesburg/33/94 strains and were obtained from patients aged 5, 6, 45, 50, 75 and 85 living in Warsaw. In February 1997 next six strains A (H3N2) similar to A/Wuhan/359/95 were isolated. Four of them were obtained from patients aged 9, 10, 11 and 14 living in Lublin. One strain was isolated from patient aged 14 living in Kielce and the last one was obtained from patient aged 70 from Warsaw. In general, ten strains isolated in 1997 were similar to the vaccine strain A/Wuhan/359/95 recommended for the epidemic season 1996/97, while two isolates were antigenically similar to the strain included in the vaccine in the previous epidemic season, i.e. 1995/96.
Kuszewski
K
K
Zakład Epidemiologii Państwowego, Zakładu Higieny, Warszawa.
Brydak
L
L
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D018073:Haemophilus Vaccines / Q000627:therapeutic use; D006801:Humans; D015994:Incidence; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control; D008297:Male; D008875:Middle Aged; D011044:Poland / Q000453:epidemiology; D013997:Time Factors
D018073:Haemophilus Vaccines
Grypa w roku 1997.