CHICAGO (Reuters) - As many as 32,000 children worldwide become sick each year with a drug-resistant "superbug" strain of tuberculosis, according to new estimates by U.S. researchers that for the first time quantify rates of this difficult-to-treat form of TB.
Overall, as many as 1 million children become sick with TB each year, about twice the number previously thought, and of these, only a third of the cases are ever diagnosed, the study found.
