Slc11a1 mutations found in inbred mice substantially affect the growth rates of microorganisms during experimental infections by Leishmania donovani, some Mycobacterium species (M. bovis, M. intracellulare, M. avium, and M. lepraemurium), and Salmonella enterica serotype Typhimurium. This evidence concerns the gene SLC11A1 and infection.