Seroincidence of Human Infections With Nontyphoid Salmonella Compared With Data From Public Health Surveillance and Food Animals in 13 European Countries

We developed a model that enabled a back-calculation of the annual salmonellosis seroincidence from measurements of Salmonella antibodies and applied this model to 9677 serum samples collected from populations in 13 European countries. We found a 10-fold difference in the seroincidence, which was lo...

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Bibliographic Details
Published in:Clinical infectious diseases 2014-12, Vol.59 (11), p.1599-1606
Main Authors: Mølbak, Kåre, Simonsen, Jacob, Jørgensen, Charlotte S., Krogfelt, Karen A., Falkenhorst, Gerhard, Ethelberg, Steen, Takkinen, Johanna, Emborg, Hanne-Dorthe
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Animals
Bacterial diseases
Bacterial diseases of the digestive system and abdomen
Biological and medical sciences
Chickens
Comparative analysis
Cross-Sectional Studies
Epidemiology
Europe - epidemiology
European Union
Female
Food safety
Health surveillance
Human bacterial diseases
Humans
Infections
Infectious diseases
Invited
Laying hens
Livestock
Male
Meat
Medical sciences
Middle Aged
Public health
Public Health Surveillance
Salmonella
Salmonella - isolation & purification
Salmonella Food Poisoning - epidemiology
Salmonella infections
Salmonella Infections, Animal - epidemiology
Seroepidemiologic Studies
Surveillance
Swine
Young Adult
Zoonoses
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Summary:We developed a model that enabled a back-calculation of the annual salmonellosis seroincidence from measurements of Salmonella antibodies and applied this model to 9677 serum samples collected from populations in 13 European countries. We found a 10-fold difference in the seroincidence, which was lowest in Sweden (0.06 infections per person-year), Finland (0.07), and Denmark (0.08) and highest in Spain (0.61), followed by Poland (0.55). These numbers were not correlated with the reported national incidence of Salmonella infections in humans but were correlated with prevalence data of Salmonella in laying hens (P < .001), broilers (P < .001), and slaughter pigs (P = .03). Seroincidence also correlated with Swedish data on the country-specific risk of travel-associated Salmonella infections (P = .001). Estimates based on seroepidemiological methods are well suited to measure the force of transmission of Salmonella to human populations, in particular relevant for assessments where data include notifications from areas, states or countries with diverse characteristics of the Salmonella surveillance.
ISSN:1058-4838
1537-6591
DOI:10.1093/cid/ciu627