As of mid-May, health experts at the U.S. Centers for Disease Control and Prevention had tallied more than 1,000 cases of measles in the U.S. this year, including a handful in Colorado. Three people with measles, including two young children, have died in Texas, where the current outbreak started.
Those three deaths among roughly 1,000 cases showed an unlucky affinity to the statistics compiled before the measles vaccine’s approval back in 1963. Before then, nearly 4 million people a year