Latent tuberculosis may persist for over 40 years

Abstract
EDITOR—The recurrence of tuberculous disease emphasises the failure of antimycobacterial treatment based on isoniazid to eradicate latent Mycobacterium tuberculosis infection. We present the follow up of a patient originally reported on in 1953 as a survivor of advanced tuberculous meningitis.1 The original case heralded the remarkable impact of isoniazid in the treatment of tuberculosis. The genomes of M …