Tuberculosis scare affects more than 1,000 in California

The Santa Clara Valley Medical Center in San Jose is tracking down hundreds of people who may have been exposed to tuberculosis. The possible exposure affects more than 1,000 people, including 350 newborns. A nurse at the hospital tested positive for the potentially deadly disease. Dr. David Agus joins “CBS This Morning” from Los Angeles to discuss what makes this infection so dangerous. Source