1. World Health Organization, African Health Observatory. Atlas of African Health Statistics 2014. In: Africa ROf, editor. 2014.
2. The global burden of typhoid fever;JA Crump;Bulletin of the World Health Organization,2004
3. Typhoid vaccines: WHO position paper;Releve epidemiologique hebdomadaire / Section d'hygiene du Secretariat de la Societe des Nations = Weekly epidemiological record / Health Section of the Secretariat of the League of Nations,2008
4. Global Burden of Invasive Nontyphoidal Salmonella Disease, 2010;TA Trong;Emerging Infectious Disease journal,2015
5. World Health Organization. Salmonella (non-typhoidal), Fact sheet N°139 2013 [Available from: http://www.who.int/mediacentre/factsheets/fs139/en/.