Long-term protection against tuberculosis following vaccination with a severely attenuated double lysine and pantothenate auxotroph of Mycobacterium tuberculosis

Abstract

We report the safety and immunogenicity of a double lysine and pantothenate auxotroph of Mycobacterium tuberculosis in mice. The ΔlysA ΔpanCD mutant is completely attenuated in immunocompromised SCID and gamma interferon knockout mice yet induces short-term and long-term protection in immunocompetent and CD4-deficient mice following single-dose subcutaneous vaccination.