Nontuberculous mycobactera (NTM) is a collective term for all Mycobacterium spp. that are not part of the Mycobacterium tuberculosis complex or Mycobacterium leprae. Virtually all are environmental mycobacteria (rather than  the human- and animal-adapted pathogens that cause tuberculosis and leprosy), although they are able to cause human infection in a limited number of situations, i.e. when the human is immunocompromised […]