Mexico City Reports 61 New Measles Cases This Week, Total Reaches 867
Mexico City, April 21, 2026 – The capital of Mexico has registered 61 new cases of measles this week, according to the Daily Report on the Measles Outbreak in Mexico, compiled by the Federal Secretariat of Health (Ssa). This figure, while lower than the 77 cases reported last week, is seven times higher than the eight infections recorded in the first days of April. The total number of confirmed cases in Mexico City since the outbreak began in August 2025 has now reached 867.
Mexico City: A Key Hotspot in the National Outbreak
Mexico City continues to be the fourth entity with the most accumulated measles cases nationwide, trailing behind Jalisco, Chihuahua (where the initial outbreak originated), and Chiapas. However, it ranks second for new cases reported this week, with Jalisco being the primary hotspot. The measles virus, which originated in Canada and the United States, poses a potential new threat with the anticipated arrival of visitors from these countries for the upcoming World Cup.
Symptoms and Transmission of Measles
Measles is a viral disease primarily transmitted through respiratory droplets when an infected person speaks, coughs, or sneezes. The incubation period for the virus typically ranges from 10 to 14 days. Initial symptoms include high fever, cough, runny nose, burning and redness in the eyes, and headache. These are followed by the characteristic rash, which consists of red, flat spots that spread across the entire body.
Vaccination Efforts and Public Health Response
In response to the ongoing outbreak, Mexico City authorities announced on April 15 that approximately 3.9 million individuals under the age of 49 have been vaccinated between 2025 and this year. Furthermore, a new campaign is being prepared to encourage the millions of visitors expected for the World Cup to get vaccinated against measles, aiming to prevent further spread of the disease.
Previous Measles Reports in Mexico City
This week’s report follows a period of fluctuating case numbers. On April 13, the accumulated cases in Mexico City stood at 806. Earlier reports indicated that the measles outbreak had reached 806 contagions in Mexico City and that cases had reduced by 66% nationally following a vaccination campaign. There was also a period where the spread of measles decelerated, with Mexico City reporting 729 confirmed accumulated cases for two consecutive days.
Impact on Public Health and Future Outlook
The persistent reporting of new measles cases underscores the ongoing public health challenge posed by the outbreak. Authorities continue to monitor the situation closely and implement measures to control the spread of the virus, including widespread vaccination campaigns and public awareness initiatives. The upcoming World Cup presents a unique challenge and opportunity for public health officials to ensure the safety of both residents and international visitors.
