Latent tuberculosis | |
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Other names | Latent tuberculosis infection |
Specialty | Infectious disease |
![]() | This article may require copy editing for grammar, style, tone, and general non-academic language written by a layperson who has done an overall good job of finding credible information. (April 2025) |
Latent tuberculosis (LTB), also called latent tuberculosis infection (LTBI), is when a person is infected with Mycobacterium tuberculosis, but does not have active tuberculosis (TB). Active tuberculosis can be contagious while latent tuberculosis is not, and therefore it is not possible to get TB from someone with latent tuberculosis. Various treatment regimens are in use for latent tuberculosis. They generally need to be taken for several months.