title: How low an effect of a preventive measure against diarrhoea are travellers willing to pay for?: A survey of Norwegian travellers.
abstract: BACKGROUND
  Traveller's diarrhoea (TD) is the most common infectious problem for travellers, and we lack effective ways of preventing it, apart from antibiotic prophylaxis. This study aims to quantify the risk reduction of a hypothetic TD vaccine Norwegian travellers are willing to pay for.
  
  
  METHODS
  1204 clients at Reiseklinikken responded to a questionnaire asking what level of effectiveness would be required of a hypothetical vaccine against TD costing US$65.
  
  
  RESULTS
  18.7% of the respondents would buy the vaccine even if it was only 20% effective. Among respondents older than 50 years, the proportion was 28.8%.
  
  
  CONCLUSIONS
  Our findings should encourage the development of vaccines and other preventive measures against travellers' diarrhoea.
authors: Reiseklinikken - Oslo Travel Clinic, Norway. Electronic address: hasle@reiseklinikken.com.
authors: Gunnar
authors: G
authors: Hasle
authors: Reiseklinikken - Oslo Travel Clinic, Norway.
authors: Lise
authors: L
authors: Heier
mesh_terms: D000328:Adult; D000368:Aged; D022121:Cholera Vaccines / Q000191:economics; D003967:Diarrhea / Q000208:ethnology / Q000382:microbiology / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway; D040242:Risk Reduction Behavior; D011795:Surveys and Questionnaires; D014195:Travel; D014612:Vaccines / Q000008:administration & dosage / Q000191:economics*; D055815:Young Adult
chemical_list: D022121:Cholera Vaccines; D014612:Vaccines
keywords: Prophylaxis; Traveller's diarrhoea; Vaccine; Willingness to pay