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Abstract
There is currently only one vaccine available that provides protection against diarrhea caused by Vibrio cholerae and, to a lesser degree, enterotoxigenic Escherichia coli (ETEC). Adverse events of this oral whole-cell/recombinant B-subunit vaccine have been negligible. Protective efficacy against cholera is 85%, while protection against the heat-labile toxin of ETEC reaches 67%. There is still a need for data on protection of Western travelers against travelers’ diarrhea in general by Dukoral® vaccination. However, current studies show a protective effect of up to 43%. Although the vaccine is only licensed for vaccination against cholera in most Western countries, there is mounting evidence that the oral cholera vaccine is a valuable option to those traveling to high-risk endemic areas. Vaccination against cholera and ETEC should be recommended for at-risk travelers, in particular those with high exposure at their travel destination or high personal risks through fluid loss.
Financial & competing interests disclosure
The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.
No writing assistance was utilized in the production of this manuscript.