Open Outbreak

Should I be worried about Measles resurgence?

Atualizado · Graduado a partir de avaliações oficiais; nada aqui é aconselhamento médico.

Recrudescimento do sarampo · alto

If you are in the affected area sem avaliação
No agency has published one overall risk level for every affected area in this worldwide measles resurgence. WHO’s official notices vary by place, including high at national level in Bangladesh on 23 April 2026 and moderate at national level in Morocco on 13 May 2025.
If you are elsewhere in the same country or region sem avaliação
No agency has published one overall assessment for being elsewhere in the same country or region across all current measles outbreaks. WHO’s published notices differ by country, with Bangladesh assessed as high nationally on 23 April 2026 and Morocco as moderate nationally on 13 May 2025.
If you are travelling there soon sem avaliação
No agency has published one overall assessment for travellers to all current measles outbreak areas. WHO rated traveller risk as high for Bangladesh on 23 April 2026, moderate for Morocco on 13 May 2025, and high in its United States measles outbreak notice on 27 March 2025.
If you are elsewhere in the world moderado
WHO assessed the global risk as moderate in its measles notice for the Region of the Americas on 28 April 2025. WHO’s Bangladesh notice on 23 April 2026 and Morocco notice on 13 May 2025 also described risk elsewhere as moderate. Segundo WHO

O que está acontecendo

Measles resurgence is being tracked worldwide because outbreaks keep appearing where vaccination gaps have opened, rather than because the virus itself is new. WHO’s published outbreak notices describe major activity in the Region of the Americas in 2025, a nationwide outbreak in Bangladesh in 2026, a large outbreak in Morocco that began in October 2023, and an unusual event in the United States notified under the International Health Regulations. The latest figures on this page are mixed: officials report 4 deaths, while media report 10,227 confirmed cases, 92 suspected cases, 200 hospitalised, and 914 deaths, all unverified; media also report 198 additional confirmed cases this week. In the last week, media coverage has focused on the United States, with outlets citing officials saying New York declared a disaster emergency and Pennsylvania passed 1,000 cases, while a smaller cluster was also reported in South Australia. Officials are responding with vaccination campaigns, case isolation, contact tracing, laboratory confirmation, surveillance, infection prevention and control, and support for hospitals, and WHO has described large-scale response measures in Bangladesh, Morocco, and across the Americas.

Quem é afetado e como se transmite

Measles spreads mainly through the air and respiratory droplets from an infected person. WHO says about 90% of non-immune people exposed to an infectious person are estimated to become infected. It can affect people of all ages, but severe illness is more likely in children under 5, malnourished children, people with vitamin A deficiency, and people with weakened immune systems. Prevention depends on vaccination, and WHO says two doses of measles-containing vaccine can prevent the disease.

O que estamos observando

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