Active case finding in tuberculosis-affected households: time to scale up.

In 2017, 10 million people developed tuberculosis, of whom approximately 4 million were not diagnosed, treated, or notified to national tuberculosis programmes (NTP).1 Of the remaining 6 million, many experienced substantial delays in accessing and receiving appropriate care.1 This unacceptable situation leads to unnecessary disability and loss of life, and impedes tuberculosis control because of onward transmission at a household and community level. To rectify these shortcomings and eliminate tuberculosis, new strategies are urgently required to enhance tuberculosis case detection.