The 2019 measles outbreaks refer to a substantial global increase in the number of

measles Measles (probably from Middle Dutch or Middle High German ''masel(e)'', meaning "blemish, blood blister") is a highly contagious, Vaccine-preventable diseases, vaccine-preventable infectious disease caused by Measles morbillivirus, measles v ...

cases reported, relative to 2018. As of April 2019, the number of measles cases reported worldwide represented a 300% increase from the number of cases seen in the previous year, constituting over 110,000 measles cases reported in the first three months of 2019. In the first half of 2019, the

World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...

received reports of 364,808 measles cases from 182 countries, up 182% from the same time period of 2018 when 129,239 confirmed cases were reported by 181 countries.

Countries affected

In the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

, 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 In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

with two quarantines ordered at two colleges in Los Angeles on April 28, 2019. Other countries reporting large increases included

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

, Nigeria,

Israel Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...

Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

, and the

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

. However, the largest and most fatal outbreak of measles in 2019 occurred in the

Democratic Republic of the Congo The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, or simply the Congo (the last ambiguously also referring to the neighbouring Republic of the Congo), is a country in Central Africa. By land area, it is t ...

. Other notable outbreak locations include the 2019 Kuala Koh measles outbreak, 2019 Philippines measles outbreak in Asia; the

2019 Pacific Northwest measles outbreak In early months of 2019, a measles outbreak occurred in the Portland metropolitan area, including the Clark County, Washington suburbs, in the United States. At the time, the outbreak was the largest outbreak in more than two decades; outbreaks ...

and 2019 New York measles outbreak in the United States; 2019–2020 New Zealand measles outbreak, and 2019 Samoa measles outbreak in Oceania.

Contributing factors

In some countries, this outbreak has been fueled by lack of access to the measles vaccine, while in others it has been exacerbated by opposition to vaccination. As one such example, the outbreak in the Philippines was attributed by Health Secretary Francisco Duque III to lowered trust in the government's immunization drive due to a controversy regarding administration of a dengue vaccine. The outbreak prompted President

Donald Trump Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who is the 47th president of the United States. A member of the Republican Party (United States), Republican Party, he served as the 45 ...

to shift away from his previous skepticism regarding vaccination, and to insist that parents must vaccinate their children. The Trump Administration also took a forceful position of requiring vaccination, with Trump's

Surgeon General Surgeon general (: surgeons general) is a title used in several Commonwealth countries and most NATO nations to refer either to a senior military medical officer or to a senior uniformed physician commissioned by the government and entrusted with p ...

Jerome Adams calling for limitations on exemptions to vaccination.

References

{{2019 measles outbreaks

Countries affected

Contributing factors

See also

References