Tedros Adhanom Ghebreyesus is the director general of the World Health Organization. (CNN) We are in the middle of a global measles crisis. Cases have soared across the world, including in places where measles had previously been eliminated -- like the United States. In just the first three months of 2019, there have been more than 110,000 measles cases reported worldwide, a figure that is up nearly 300% from the same period last year. More than 20 million lives have been saved through measles vaccination since the year 2000 alone.

Source: CNN April 15, 2019 12:45 UTC