Woman who avoided tuberculosis treatment for more than a year to be arrested

This image provided by the University of Pittsburgh School of Medicine and the National Institute of Allergy and Infectious Diseases shows a collection of lung scans of 20 monkeys who were exposed to tuberculosis after receiving different forms of a TB vaccine. (JoAnne Flynn, Alexander White and Pauline Maiello/Pitt; Mario Roederer/NIAID via AP)