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Chickenpox

Chickenpox

Chickenpox is an acute, highly contagious disease caused by the varicella-zoster virus (VZV), a double-stranded DNA virus belonging to the Herpesviridae family. Its transmission occurs primarily through the inhalation of respiratory droplets or direct contact with vesicular fluid from skin lesions. The incubation period typically ranges from 10 to 21 days, during which the virus replicates and disseminates through sequential phases within the host. Although generally self-limiting in children,...

Smallpox

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Smallpox is a severe contagious disease caused by the Variola major virus, a double-stranded DNA member of the Poxviridae family.Variola major transmission occurs primarily via inhalation of virus-laden droplets or direct contact with infectious scabs. The incubation period averages approximately seven days, although it may range from 7 to 17 days depending on the inoculum and host factors.Clinically, the prodromal phase is marked by an abrupt onset of high fever, malaise, headache, and myalgia.

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Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...

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Vaccinia Reporter Viruses for Quantifying Viral Function at All Stages of Gene Expression

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[Chickenpox in Poland in 2008].

Iwona Paradowska-Stankiewicz¹

¹Zakład Epidemiologii, Narodowego Instytutu Zdrowia Publicznego - Państwowego Zakładu Higieny w Warszawie. istankiewicz@pzh.gov.pl

Przeglad Epidemiologiczny

|August 25, 2010

Summary

In 2008, Poland reported fewer chickenpox cases than in previous years, with children aged 5-9 most affected. No deaths were reported, and hospitalizations remained low.

Area of Science:

Epidemiology
Public Health
Infectious Diseases

Context:

Chickenpox (varicella) remains a significant public health concern globally.
Understanding disease incidence and trends is crucial for effective prevention strategies.

Purpose:

To analyze the epidemiological trends of chickenpox in Poland during 2008.
To identify the most affected age groups and assess the severity of reported cases.

Summary:

Poland documented 129,662 chickenpox cases in 2008, a decrease from 2007 and the 2002-2006 median.
The incidence rate was 340.2 per 100,000 population.
Children aged 5-9 years exhibited the highest incidence (3057.1 per 100,000).
Hospitalization was required for 0.62% of cases (800 individuals), with no fatalities reported.

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Last Updated: Jun 10, 2026

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Impact:

The findings indicate a declining trend in chickenpox incidence in Poland.
Highlights the vulnerability of young children to chickenpox, informing targeted public health interventions.
The low mortality rate suggests effective management of severe cases or a generally mild disease course in the population.