Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022

Salmonellosis is the second most common foodborne bacterial gastroenteritis in humans in Finland and worldwide. In Finland, a national salmonella control program covering cattle, pigs, and poultry, as well as the meat and eggs obtained from them, has been in place since the country joined the EU in...

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Main Authors: Kristiina Suominen, Jukka Ollgren, Elina Leinonen, Ruska Rimhanen-Finne
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Microorganisms
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Online Access:https://www.mdpi.com/2076-2607/13/3/693
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author Kristiina Suominen
Jukka Ollgren
Elina Leinonen
Ruska Rimhanen-Finne
author_facet Kristiina Suominen
Jukka Ollgren
Elina Leinonen
Ruska Rimhanen-Finne
author_sort Kristiina Suominen
collection DOAJ
description Salmonellosis is the second most common foodborne bacterial gastroenteritis in humans in Finland and worldwide. In Finland, a national salmonella control program covering cattle, pigs, and poultry, as well as the meat and eggs obtained from them, has been in place since the country joined the EU in 1995. To identify trends in the incidence of salmonellosis and to reflect on their causes, we analyzed <i>Salmonella</i> case data from the Finnish Infectious Disease Register (FIDR) from 1995 to 2022 and outbreak data from the national food and waterborne outbreak register (the FWO register) in the period 2010–2022. From 1995–1999 to 2015–2019, the incidence of salmonellosis decreased by 66% and 63% for domestic and travel-related cases, respectively. Most salmonellosis cases (72%) were travel-related, and, of them, 27% were infected in Southeast Asia. The most common serovars were <i>S</i>. Typhimurium and <i>S</i>. Enteritidis (38% and 19% of domestic cases, and 7% and 39% of travel-related cases). During 2010–2022, <i>Salmonella</i> sp. was reported as a cause in 31 foodborne outbreaks. In 14 of them, the source was identified at foodstuff level, and 12 sources were of foreign origin. The results of this study indicate that the national salmonella control program may have prevented domestic human infections in Finland.
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spelling doaj-art-0cc1176b2d0a4607996b60ca458e49de2025-08-20T02:42:22ZengMDPI AGMicroorganisms2076-26072025-03-0113369310.3390/microorganisms13030693Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022Kristiina Suominen0Jukka Ollgren1Elina Leinonen2Ruska Rimhanen-Finne3Department of Public Health, Finnish Institute for Health and Welfare, Mannerheimintie 166, 00300 Helsinki, FinlandDepartment of Public Health, Finnish Institute for Health and Welfare, Mannerheimintie 166, 00300 Helsinki, FinlandFood Safety Department, Finnish Food Authority, Mustialankatu 3, 00790 Helsinki, FinlandDepartment of Public Health, Finnish Institute for Health and Welfare, Mannerheimintie 166, 00300 Helsinki, FinlandSalmonellosis is the second most common foodborne bacterial gastroenteritis in humans in Finland and worldwide. In Finland, a national salmonella control program covering cattle, pigs, and poultry, as well as the meat and eggs obtained from them, has been in place since the country joined the EU in 1995. To identify trends in the incidence of salmonellosis and to reflect on their causes, we analyzed <i>Salmonella</i> case data from the Finnish Infectious Disease Register (FIDR) from 1995 to 2022 and outbreak data from the national food and waterborne outbreak register (the FWO register) in the period 2010–2022. From 1995–1999 to 2015–2019, the incidence of salmonellosis decreased by 66% and 63% for domestic and travel-related cases, respectively. Most salmonellosis cases (72%) were travel-related, and, of them, 27% were infected in Southeast Asia. The most common serovars were <i>S</i>. Typhimurium and <i>S</i>. Enteritidis (38% and 19% of domestic cases, and 7% and 39% of travel-related cases). During 2010–2022, <i>Salmonella</i> sp. was reported as a cause in 31 foodborne outbreaks. In 14 of them, the source was identified at foodstuff level, and 12 sources were of foreign origin. The results of this study indicate that the national salmonella control program may have prevented domestic human infections in Finland.https://www.mdpi.com/2076-2607/13/3/693<i>Salmonella</i> infectionsgastroenteritistravelregisterdemographyfoodborne outbreaks
spellingShingle Kristiina Suominen
Jukka Ollgren
Elina Leinonen
Ruska Rimhanen-Finne
Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022
Microorganisms
<i>Salmonella</i> infections
gastroenteritis
travel
register
demography
foodborne outbreaks
title Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022
title_full Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022
title_fullStr Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022
title_full_unstemmed Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022
title_short Reporting of Salmonellosis Markedly Declined in Finland During 28 Years of Surveillance, 1995–2022
title_sort reporting of salmonellosis markedly declined in finland during 28 years of surveillance 1995 2022
topic <i>Salmonella</i> infections
gastroenteritis
travel
register
demography
foodborne outbreaks
url https://www.mdpi.com/2076-2607/13/3/693
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AT jukkaollgren reportingofsalmonellosismarkedlydeclinedinfinlandduring28yearsofsurveillance19952022
AT elinaleinonen reportingofsalmonellosismarkedlydeclinedinfinlandduring28yearsofsurveillance19952022
AT ruskarimhanenfinne reportingofsalmonellosismarkedlydeclinedinfinlandduring28yearsofsurveillance19952022