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Pertussis in Poland in 2016
Agnieszka Rumik1, Iwona Paradowska-Stankiewicz1, Jolanta Rudowska1
1National Institute of Public Health - National Institute of Hygiene in Warsaw, Department of Epidemiology of Infectious Diseases and Surveillance
Insights
Pertussis (whooping cough) incidence increased by 38% in Poland in 2016, highlighting ongoing bacterial circulation. Vaccination remains the most effective strategy to prevent pertussis outbreaks.
Area of Science:
- Epidemiology
- Public Health
- Infectious Diseases
Background:
- Pertussis incidence in Poland has remained high for a decade, with a significant 38% increase in 2016 compared to the previous year.
- Older individuals with pertussis pose a risk of infection to unvaccinated or under-vaccinated infants and newborns.
Purpose of the Study:
- To evaluate the 2016 epidemiological situation of pertussis in Poland.
- To compare the 2016 pertussis data with previous years.
- To assess the vaccination status of children against pertussis.
Main Methods:
- Analysis of individual suspected pertussis case reports submitted to NIZP-PZH.
- Review of national data from "Infectious diseases and poisoning in Poland in 2016" bulletin.
- Examination of data from the "Protective vaccinations in Poland in 2016" bulletin.
Main Results:
- In 2016, 6,828 pertussis cases were recorded, with an incidence rate of 17.77 per 100,000 population.
- The highest incidence was observed in the 10-14 age group (88.1 per 100,000), with high rates also in infants aged 0 and 3 years.
- 24% of pertussis patients (1,640 individuals) were hospitalized; no deaths were reported in 2016.
Conclusions:
- The rise in pertussis cases in 2016 indicates continued bacterial circulation and population susceptibility.
- Maintaining high vaccination coverage according to the current schedule is crucial for reducing pertussis incidence.
- Vaccination remains the primary and most effective strategy for pertussis prevention.
Introduction:
In Poland, the high incidence of pertussis has been maintained for 10 years – in 2016 it was 17,77 per 100,000 population and it was 38% more compared to the previous year. The high percentage of pertussis is still present in those who are older, who may be a source of infection for non-immunized or not fully immunized newborns and infants. The most effective prevention strategy remains the implementation of vaccinations in accordance with the current calendar.
Objectives:
The aim of the article is to assess the epidemiological situation of pertussis in Poland in 2016 compared to the situation in previous years, with particular emphasis on the assessment of the status of inoculation of children against pertussis.
Materials And Methods:
Analysis of the epidemiological situation of pertussis in Poland was carried out on the basis of individual reports of suspected cases of pertussis sent to NIZP-PZH by regional sanitaryepidemiological stations, data from the bulletin “Infectious diseases and poisoning in Poland in 2016”(2) and the bulletin “Protective vaccinations in Poland in 2016”(3).
Results:
In 2016, 6 828 cases of pertussis were registered. The incidence was 17.77 per 100,000 population and was 38% higher compared to the previous year (12.89). The highest incidence of pertussis occurred in people aged 10-14 (88.1), and high in children aged 0 and 3 years - 76.7 and 77.0 per 100,000 population. Of the 6 828 patients with pertussis, 1 640 people were hospitalized (24% of total). In 2016, no deaths were reported due to pertussis.
Summary And Conclusions:
The increase in pertussis observed in 2016 indicates the persistent circulation of bacteria in the environment and still persistent population sensitivity to infection. The only effective strategy to reduce the number of cases remains the use of vaccinations according to the current calendar and recommendations of experts.
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