1. Typhoid vaccines: WHO position paper, March 2018;World Health Organization (WHO);Week Epidemiol Rec,2018
2. WHO. Typhoid vaccines: WHO position paper, 2008, Weekly epidemiological record, No. 6; 2008, 83. p. 49–60.
3. WHO. Evidence to recommendation table: typhoid vaccines. Available at [accessed December 2017].
4. WHO. Vaccination in acute humanitarian emergencies. A framework for decision making; 2017. Available at [accessed January 2018].
5. Weekly epidemiological record, No. 39; 2015. p. 505–10.