Documents Savoirs Colonization of Phlebotomus papatasichanges the effect of pre-immunization with saliva from lack of protection towards protection against experimental challenge with Leishmania majorand saliva Kaabi Belhassen, Chelbi Ifhem, Cherni Saifeddine, Derbali Mohamed, Laouini Dhafer, Zhioua, Zhioua Elyes, Ben