{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T11:13:50Z","timestamp":1779102830021,"version":"3.51.4"},"reference-count":0,"publisher":"National Institute of Public Health NIH (National Research Institute)","issue":"4","license":[{"start":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T00:00:00Z","timestamp":1767139200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T00:00:00Z","timestamp":1767139200000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T00:00:00Z","timestamp":1767139200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Przegl Epidemiol"],"published-print":{"date-parts":[[2025,12,31]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>In 2023 there was a significant increase in the number of syphilis cases in Poland, more than 50% new cases were reported compare to previous year. There is still a problem with the clinical differentiation of reported cases, i.e. new infections, reinfections, and residual positive serological tests confirming the presence of antibodies against &lt;i&gt;Treponema pallidum&lt;\/i&gt; in previously successfully treated individuals.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The aim of the study was to assess the epidemiological situation of syphilis cases in Poland in 2023 in comparison to previous years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and methods<\/jats:title>\n                    <jats:p>Analysis of the epidemiological situation was based on case-based data from reports of newly detected syphilis cases received from doctors and laboratories and registered in 2023 year. Additionally aggregated data from MZ-56 reports on infectious diseases, infections and poisoning from 2017 to 2019 sent from Sanitary Inspections to NIPH NIH \u2013 NRI was used. Also, data about treatment patients in dermatology\/venereology clinics in 2020-2023 reported on MZ-14 forms and published in the NIPH NIH \u2013 NRI bulletins were used.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In 2023, in Poland, 2,968 syphilis cases were reported (diagnosis rate was 7.89 per 100,000 population), including 130 cases among non-Polish citizens. The most often syphilis cases were detected among people below 30 years old (37.1%) and among men (88.1%). In 2023, early syphilis (ICD-10 code: A51) consisted 36.0% of all cases reported to surveillance (1,068 cases) and other syphilis and undetermined (ICD-10 code: A53) consisted 60.6% (1,799 cases).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In 2023, the number of reported syphilis cases increased more than by half compared to the previous year. The percentage of cases of early syphilis (the most infectious), which probably occurred in a short period of time, also remains high, what can influence on transmission this infection in population and lead to increase in the number of new cases.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.32394\/pe\/218342","type":"journal-article","created":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T20:23:21Z","timestamp":1772223801000},"page":"650-663","source":"Crossref","is-referenced-by-count":0,"title":["Syphilis in Poland in 2023"],"prefix":"10.32394","volume":"79","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0522-4727","authenticated-orcid":false,"given":"Marta","family":"Nied\u017awiedzka-Stadnik","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4131-4738","authenticated-orcid":false,"given":"Karolina","family":"Zakrzewska","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"17323","published-online":{"date-parts":[[2026,2,27]]},"container-title":["Przeglad Epidemiologiczny"],"original-title":["Ki\u0142a w Polsce w 2023 roku"],"link":[{"URL":"https:\/\/www.przeglepidemiol.pzh.gov.pl\/pdf-218342-138495","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.przeglepidemiol.pzh.gov.pl\/pdf-218342-138495","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T10:22:56Z","timestamp":1779099776000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.przeglepidemiol.pzh.gov.pl\/Kila-w-Polsce-w-2023-roku,218342,0,2.html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,12,31]]},"references-count":0,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2025]]}},"alternative-id":["218342"],"URL":"https:\/\/doi.org\/10.32394\/pe\/218342","relation":{},"ISSN":["0033-2100","2545-1898"],"issn-type":[{"value":"0033-2100","type":"print"},{"value":"2545-1898","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,12,31]]}}}