2019–2020 measles outbreaks

Countries affected

In the United States, the number of measles cases was set to reach a 25-year high by the middle of the year, beginning with a large concentration of cases in the Pacific Northwest followed by another in New York, as well in the U.S. state of California with two quarantines ordered at two colleges in Los Angeles on April 28, 2019. Other countries reporting large increases included Brazil, Nigeria, Israel, Ukraine, Madagascar, India, and the Philippines. However, the largest and most fatal outbreak of measles in 2019 occurred in the Democratic Republic of the Congo. Other notable outbreak locations include the 2019 Kuala Koh measles outbreak, 2019 Philippines measles outbreak in Asia; the 2019 Pacific Northwest measles outbreak and 2019 New York measles outbreak in the United States; 2019–2020 New Zealand measles outbreak, and 2019 Samoa measles outbreak in Oceania.