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Updated: Aug 4, 2025
A High-throughput Platform for the Screening of Salmonella spp./Shigella spp.
Published on: November 7, 2018
Foodborne infections and intoxications in Poland in the years 2018-2020
Piotr Polański1, Małgorzata Sadkowska-Todys1, Ewelina Księżak1
1National Institute of Public Health NIH - National Research Institute, Department of Epidemiology of Infectious Diseases and Surveillance.
Aim:
The purpose of this study is to assess the epidemiological situation of foodborne infections and intoxications in Poland in the years 2018-2020.
Materials And Methods:
The evaluation was based on the analysis of information sent to Department of Epidemiology NIPH NIH - NRI through ROE (pol. Rejestr Ognisk Epidemicznych) - an electronic system created for uploading, transfer and analysis of data acquired during the outbreak investigations. Additional sources for the analysis were NIPH NIH - NRI annual bulletins (Czarkowski MP et al. "Infectious diseases and poisonings in Poland", 2014-2020. Warsaw, NIPH NIH and GIS).
Results:
In the years 2018-2020 a total number of 2,108 foodborne outbreaks were reported in which 52,175 persons were exposed and 17,023 got sick (in 2016 n=916, in 2019 n=918, in 2020 n=274). In 2020 over 3 fold decrease in the number of outbreaks comparing to 2019 and over 4 fold decrease in the number of cases in those outbreaks was observed. Among outbreaks which took place in 3 most frequent settings (private household, food facility and hospital) the steepest decrease was in 12th week of 2020 (ISO 2020-W12). The most frequent etiological agent of outbreaks in the years 2018-2020 was Salmonella sp. (38.3% of outbreaks in 2018, 32.7% in 2019 and 47.8% in 2020) and specifically serotype Enteritidis (38.3%, 27% and 39.4% accordingly). The most frequent setting of outbreaks was private household (59.7% outbreaks in 2018, 66% in 2019 and 62% in 2020), followed by hospital (17.4%, 18.3% i 19.7% accordingly). Up until 2019 an increasing trend in the number of small outbreaks (up to 4 cases) caused by Salmonella sp. was observed (in 2018 - 605 and in 2019 - 612 were reported).
Conclusions:
Decrease in the number of outbreaks in selected settings from 12th ISO week of 2020 might have been due to introduction of restrictions during COVID-19 pandemic and enhancement of personal hygiene practices. An increase in identified and registered small outbreaks caused by Salmonella sp. comparing to the median of the number of those outbreaks from 2014-2016 could partly be a result of routine surveillance enhancement after introducing System for Registry of Epidemiological Interviews (pol. SRWE).
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