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[Influenza in Poland in 2001].
Krzysztof Kuszewski1, Lidia B Brydak, Magdalena Machała
1Zakład Epidemiologii Państwowego Zakładu Higieny ul. Chocimska 24, 00-791 Warszawa. kkuszewski@pzh.gov.pl
Przeglad Epidemiologiczny
|August 21, 2003
Summary
In 2001, Poland recorded over 576,000 influenza and influenza-like illness (ILI) cases, with children most affected. Serological surveys indicated comparable antibody levels for influenza A(H1N1), A(H3N2), and B strains.
Area of Science:
- Epidemiology
- Virology
Context:
- Poland reported 576,449 cases of influenza and influenza-like illness (ILI) in 2001, a 36.1% decrease from 2000.
- The highest incidence rates were observed in Dolnoślaskie, Mazowieckie, and Zachodniopomorskie voivodships.
- Children aged 0-14 accounted for 47.8% of cases, with an incidence of 3851.4 per 100,000.
Purpose:
- To summarize the epidemiological situation of influenza and ILI in Poland during 2001.
- To report on viral isolation, laboratory testing, and serological findings.
- To assess the impact of influenza on public health, including hospitalizations and mortality.
Summary:
- A total of 576,449 influenza and ILI cases were registered in Poland in 2001.
- Hospitalization involved 678 patients, and 26 deaths were attributed to influenza.
- One influenza A(H1N1) strain was isolated; immunofluorescence tests were negative for influenza virus in over 900 specimens.
- Serosurveys in 2001/2002 showed comparable antihemagglutinin antibody levels for A(H1N1), A(H3N2), and B strains, with highest titers in the 15-25 age group.
Impact:
- The study highlights the significant burden of influenza and ILI in Poland, particularly among children.
- Findings inform public health strategies and surveillance efforts within the European Influenza Surveillance Scheme.
- Serological data provides insights into population immunity and circulating influenza strains.