[Pertussis in Poland in 2001]

Area of Science:

• Epidemiology
• Infectious Diseases
• Public Health

Background:

• Pertussis (whooping cough) is a highly contagious respiratory infection.
• An increase in reported pertussis cases was observed globally in 2001.
• A persistent trend of increasing pertussis cases in older age groups has been noted since 1992.

Purpose of the Study:

• To analyze the epidemiological trends of pertussis in Poland in 2001.
• To identify demographic and geographic patterns of pertussis incidence.
• To assess the impact of improved diagnostic methods on pertussis reporting.

Main Methods:

• Retrospective analysis of reported pertussis cases in Poland for 2001.
• Comparison of case numbers and incidence rates with the previous year (2000).
• Evaluation of diagnostic confirmation methods, including ELISA and culture.

Main Results:

• A total of 2411 pertussis cases were reported in Poland in 2001, an increase of 142 cases from 2000.
• Higher incidence rates were observed in females (7.0/100,000) compared to males (5.4/100,000).
• Urban areas reported higher incidence (7.8/100,000) than rural areas (3.7/100,000).
• Vaccination coverage for children under 2 years remained high at 98.2%.
• Reporting and laboratory confirmation quality improved, with 58.6% of cases confirmed by ELISA.

Conclusions:

• Pertussis incidence in Poland showed an increasing trend in 2001, with specific demographic and geographic disparities.
• The findings highlight the continued circulation of pertussis, even with high vaccination coverage.
• Enhanced surveillance and diagnostic capabilities have improved the accuracy of pertussis case reporting.