1. Cholera vaccines: WHO position paper. Wkly Epidemiol Rec 2010;85:117–28.
2. Meeting of the Strategic Advisory Group of Experts on immunization, October 2009—conclusions and recommendations. Wkly Epidemiol Rec 2009;84:517–32.
3. Oral cholera vaccine use in complex emergencies: what next? Geneva, World Health Organization, 2006 (WHO/CDS/NTD/IDM/2006.2) (Also available from http://www.who.int/cholera/publications/cholera_vaccines_emergencies_2005.pdf).
4. See Annex 1 of reference 3.