Epidemiology and Infection

Original Papers

Salmonella, Campylobacter

Estimating the true incidence of campylobacteriosis and salmonellosis in the European Union, 2009

A. H. HAVELAARa1a2 c1, S. IVARSSONa3, M. LÖFDAHLa3 and M. J. NAUTAa4

a1 National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, The Netherlands

a2 Utrecht University, Faculty of Veterinary Medicine, Institute for Risk Assessment Sciences, Utrecht, The Netherlands

a3 Swedish Institute for Communicable Disease Control, Solna, Sweden

a4 Technical University of Denmark, National Food Institute, Division of Microbiology and Risk Assessment, Søborg, Denmark

SUMMARY

We estimated the true incidence of campylobacteriosis and salmonellosis in the European Union (EU) in 2009. The estimate was based on disease risks of returning Swedish travellers, averaged over the years 2005–2009, and anchored to a Dutch population-based study on incidence and aetiology of gastroenteritis. For the 27 EU member states the incidence of campylobacteriosis was about 9·2 (95% CI 2·8–23) million cases, while the incidence of salmonellosis was 6·2 (95% CI 1·0–19) million cases. Only 1/47 (95% CI 14–117) cases of campylobacteriosis and one 1/58 (95% CI 9–172) cases of salmonellosis were reported in the EU. The incidence rate of campylobacteriosis in EU member states varied between 30 and 13 500/100 000 population and was significantly correlated with the prevalence of Campylobacter spp. in broiler chickens. The incidence rate of salmonellosis in EU member states varied between 16 and 11 800/100 000 population and was significantly correlated with the prevalence of Salmonella Enteritidis in laying hens.

(Received June 14 2011)

(Revised January 24 2012)

(Accepted March 11 2012)

(Online publication April 13 2012)

Key words

  • Campylobacter ;
  • gastroenteritis;
  • infectious disease epidemiology;
  • Salmonella ;
  • travellers' infection

Correspondence:

c1 Author for correspondence: Dr A. H. Havelaar, Laboratory for Zoonoses and Environmental Microbiology, Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands. (Email: arie.havelaar@rivm.nl)

Metrics