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Chickenpox in Poland in 2019.

Joanna Bogusz¹, Paulina Ochocka¹, Iwona Paradowska-Stankiewicz¹

¹National Institute of Public Health NIH - National Research Institute, Department of Epidemiology of Infectious Diseases and Surveillance.

Przeglad Epidemiologiczny

|February 16, 2022

Summary

Chickenpox cases increased in Poland in 2019, with higher incidence in young children and rural areas. Vaccination remains key for prevention, with growing uptake despite funding challenges.

Keywords:

2019 Poland chickenpox epidemiology

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Area of Science:

Epidemiology
Public Health
Vaccinology

Background:

Chickenpox (varicella) is a common, typically mild viral illness that can cause severe complications.
Vaccination is a highly effective preventive measure against chickenpox.
Poland has implemented recommended vaccinations since 2003 and obligatory vaccinations for vulnerable children since 2009.

Purpose of the Study:

To evaluate the 2019 epidemiological status of chickenpox in Poland.
To assess vaccination coverage within the Polish population.
To compare the 2019 data with previous years' trends.

Main Methods:

Analysis of aggregate data from annual bulletins: "Infectious diseases and poisoning in Poland in 2019" and "Protective Vaccination in Poland in 2019."
Inclusion of recommendations from the 2019 Protective Vaccine Program.

Main Results:

180,641 chickenpox cases were recorded in Poland in 2019, a 17.2% increase from 2018.
Incidence was 470.6 per 100,000 population, highest in the Śląskie Voivodeship and lowest in Dolnośląskie.
Children aged 0-4 years were most affected; incidence was higher in males and rural populations. Hospitalizations accounted for 0.64% of cases.

Conclusions:

Despite a rise in cases in 2019, chickenpox incidence remains lower than in 2012-2014.
Growing vaccination coverage indicates its effectiveness as a primary prevention strategy.
Enhanced public health education on vaccination is crucial for further improving the epidemiological situation, emphasizing the recommended two-dose regimen.