Around the world, measles cases fell 80 percent between 2000 and 2016, with deaths dropping to 90,000 a year from 550,000. said there were three times as many measles cases around the world this year as there were in the first three months of 2018. Before measles vaccination became widespread in the United States in 1963, up to four million Americans got measles each year, the C.D.C. [Like the Science Times page on Facebook. Immunization levels vary from state to state, largely dependent on how easy state legislatures make it to get exemptions.

Source: New York Times April 25, 2019 00:00 UTC