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. 2023 Apr;23(4):247-255.
doi: 10.1089/vbz.2022.0049. Epub 2023 Jan 27.

A Retrospective Database Study of Lyme Borreliosis Incidence in Poland from 2015 to 2019: A Public Health Concern

Iwona Paradowska-Stankiewicz  1 , Jakub Zbrzeźniak  1 , Jozica Skufca  2 , Archana Nagarajan  2 , Paulina Ochocka  1 , Andreas Pilz  3 , Andrew Vyse  4 , Elizabeth Begier  5 , Mendwas Dzingina  4 , Maxim Blum  2 , Margarita Riera-Montes  2 , Bradford D Gessner  6 , James H Stark  6
Affiliations

A Retrospective Database Study of Lyme Borreliosis Incidence in Poland from 2015 to 2019: A Public Health Concern

Iwona Paradowska-Stankiewicz et al. Vector Borne Zoonotic Dis. 2023 Apr.

Abstract

Background: In Poland, Lyme borreliosis (LB) has been subject to mandatory public health surveillance since 1996 and, in accordance with EU regulations, Lyme neuroborreliosis has been reported to the European Centre for Disease Prevention and Control since 2019. In this study, the incidence, temporal trends, and geographic distribution of LB and its manifestations in Poland are described for the period 2015-2019. Methods: This retrospective incidence study of LB and its manifestations in Poland was based on data sent to the National Institute of Public Health-National Institute of Hygiene-National Research Institute (NIPH-NIH-NRI) by district sanitary epidemiological stations using the electronic Epidemiological Records Registration System and data from the National Database on Hospitalization. Incidence rates were calculated using population data from the Central Statistical Office. Results: During 2015-2019, Poland reported 94,715 cases of LB with an overall average incidence of 49.3 cases per 100,000 population. Cases increased from 2015 (11,945) to 2016 (20,857) and then remained stable through 2019. Hospitalization due to LB also rose during these years. LB was more common among women (55.7%). Erythema migrans and Lyme arthritis were the most common manifestations of LB. The highest incidence rates occurred among >50-year-olds, with a peak in 65-69-year-olds. The highest number of cases was recorded in the third and fourth quarters of the year (July-December). Incidence rates in the eastern and northeastern regions of the country were higher than the national average. Conclusions: LB is endemic in all regions of Poland, and many regions reported high incidence rates. Large variations in spatially granular incidence rates highlight the need for targeted prevention strategies.

Keywords: 2015–2019; Lyme arthritis; Lyme borreliosis; Poland; epidemiology; surveillance.

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Conflict of interest statement

P95 was contracted by Pfizer to conduct this study. J.S., A.N., M.B., and M.R.-M. declare no conflicts of interest. I.P.-S., J.Z., and P.O., employees of Poland's NIPH, declare no conflicts of interest. A.P., A.V., E.B., M.D., B.D.G., and J.H.S. are employees of Pfizer and may hold stock or stock options.

Figures

FIG. 1.
FIG. 1.
(a) Number of cases and annual incidence rates of LB. (b) Percentage of LB and disseminated cases according to the level of diagnostic certainty (probable and confirmed) in Poland, 2015–2019. LB, Lyme borreliosis.
FIG. 2.
FIG. 2.
The mean annual incidence rates of various manifestations of LB among different age groups.
FIG. 3.
FIG. 3.
Number of LB cases by month during 2015–2019.
FIG. 5.
FIG. 5.
The annual LB incidence rate (number of cases per 100,000 population) across voivodeships in Poland from 2015 to 2019.
FIG. 4.
FIG. 4.
(a) Average incidence rate of LB by voivodeship in Poland. (b) Forest cover in Poland in 2015 (Central Statistical Office 2016).
See this image and copyright information in PMC

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