title: Reply to Alffenaar et al.
authors: University of Florida, Gainesville.
authors: Charles A
authors: CA
authors: Peloquin
authors: Johns Hopkins University, Baltimore, Maryland.
authors: Susan E
authors: SE
authors: Dorman
authors: Division of Tuberculosis Elimination, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia.
authors: Andrew
authors: A
authors: Vernon
authors: World Health Organization Collaborating Centre for TB and Lung Diseases, Fondazione S. Maugeri Care and Research Institute, Tradate, Italy.
authors: Giovanni
authors: G
authors: Battista Migliori
authors: University of California, San Francisco.
authors: Payam
authors: P
authors: Nahid
mesh_terms: D002487:Centers for Disease Control and Prevention, U.S.; D003141:Communicable Diseases; D004198:Disease Susceptibility; D006801:Humans; D014376:Tuberculosis; D014481:United States