Transmission of rifampicin-resistant tuberculosis in Ho Chi Minh City, Viet Nam: a prospective genomic epidemiology study
This prospective genomic epidemiology study in Ho Chi Minh City reveals that the majority of rifampicin-resistant tuberculosis cases are driven by the ongoing transmission of already-resistant strains rather than *de novo* resistance acquisition, highlighting the need for strategies that combine early diagnosis to interrupt transmission with efforts to identify and control the drivers of newly acquired resistance.