Health officials in Washington, D.C., are urging residents to be vigilant as multiple confirmed measles cases have been reported, with some carriers visiting various locations across the city between January 21 and February 2, 2026. The affected sites include the National March for Life rally on the National Mall, which attracted high-profile speakers like Vice President JD Vance and House Speaker Mike Johnson. Other locations include the Basilica of the National Shrine of the Immaculate Conception, Catholic University of America, Ronald Reagan Washington National Airport, Washington Metro transit lines, Union Station, and Children's National Medical Center emergency department.
The DC Health department has issued a statement (https://dchealth.dc.gov/release/health-officials-investigating-measles-exposures-dc-residents) warning that individuals who attended these locations during the specified period may have been exposed to the contagious disease. With the U.S. already reporting 733 measles cases this year, 92% of which are outbreak-related, according to the Centers for Disease Control and Prevention, the situation is concerning. The CDC recommends two doses of the MMR vaccine for 97% effectiveness against measles, with the first dose administered at 12-15 months and the second between 4 and 6 years old. However, vaccination rates have been declining, with only 92.5% of kindergartners receiving the MMR vaccine during the 2024-2025 school year, compared to 95.2% before the COVID-19 pandemic.
ABC News, in collaboration with researchers, has created a map (https://abcnews.go.com/Health/new-map-shows-spot-measles-risk-level-zip/story?id=129179712) that highlights areas at 'very high risk' due to low vaccination rates among children under 5. This map serves as a reminder of the importance of vaccination in preventing the spread of measles and protecting public health.
