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I. Member, ANR-10-INBS-04?01) and the Labex Saclay Plant Science " (ANR-11-IDEX-0003?02) This work was also supported by U.S. National Institutes of Health and National Institute of Allergy and Infectious Diseases grant R01AI063513; Defense Threat Reduction Agency grant HDTRA1?12?1?0002; and the Douglass and Ewing Halsell Foundations, Work on Simkania and Chlamydia was supported by the Deutsche Forschungsgemeinschaft (DFG) Priority programme 1580 to T.R. SIMOPRO and SCBM are members of the Laboratory of Excellence LERMIT supported by a grant from the Agence Nationale de la Recherche (ANR-10-LABX-33) and RetroLeishma project R3