Opinion | A measles crisis looms. Now is not the time to give up on vaccines.

Jonathan Slater is a clinical professor of psychiatry at Columbia University Irving Medical Center. This November, the Pan American Health Organization will review whether the United States has lost its measles elimination status -- a designation held since 2000. As of April 23, 1,792 confirmed cases have been reported across the U.S. Utah is the latest epicenter: nearly 600 cases since last summer. At one to three deaths per thousand cases, the arithmetic is clear: Deaths are coming.