contact tracing: a strategy to augment tuberculosis case detection

sir, the world health organization has acknowledged that tuberculosis (tb) is one of the deadliest infectious diseases worldwide.[1] the global estimates suggest that in the year 2013, almost 9 million people were diagnosed with tb and around 1.5 million succumbed to the disease and its associated complications.[1] as an effective approach [viz. directly observed treatment and short‑course chemotherapy (dots)] is available for the disease, it is really unacceptable to digest that so many people die every year because of a preventable disease.[1,2] ........