Table 15– Treatment regimens for latent infection with M. tuberculosis 21
Treatment regimen[Ref.]Efficacy/effectivenessLevel of evidence
12 months isoniazid26, 21112H93%/75%A
9 months isoniazid195, 212, 2139H∼90%C
6 months isoniazid1956H69%/65%A
4 months rifampicin214–2164RUnknown (>3HR)C
3 months isoniazid-rifampicin217, 2183HREquivalent to 6HA