The U.N. is warning the spread of measles is on the rise around the world. The number of cases reported in the first three months of 2019 is three times higher than the same time last year. The highly contagious infection kills 100,000 people every year, mostly children. All regions around the world have been hit by the recent outbreak, with Africa reporting the greatest spike, up 700% since 2018. The U.N. says the most affected countries are Ukraine, Madagascar and India. Although the disease is preventable, lack of access to vaccinations in poorer countries has helped contribute to the recent surge in cases.

Last week, New York City declared a public health emergency, mandating the vaccination in some parts of Brooklyn, where Orthodox Jewish communities, which have particularly low vaccination rates, have been hit hard by the outbreak.