First U.S. measles death in 12 years amid vaccine fight
Washington state health officials confirmed Thursday that pneumonia caused by measles killed an unidentified woman this spring. The death is not tied to the Disneyland outbreak, which spread to the Northwest. However, the death comes 15 years after the virus was considered eliminated in the U.S. Dr. David Agus joins "CBS This Morning" from Los Angeles to discuss the case.