CONTACT: Laura Matusheski, Media Relations Coordinator
Email: DPHMedia@delaware.gov
DOVER, Del. (March 20, 2025) – With the recent increase in measles cases throughout the United States, the Delaware Division of Public (DPH) has received requests for information on how Delawareans can protect themselves from the measles virus. As advised by the Centers for Disease Control and Prevention (CDC), the best way to protect against measles remains vaccination. The measles, mumps, and rubella vaccine, often referred to as the MMR vaccine, is safe and highly effective, with one dose being 93% effective and two doses being 97% effective against measles. Children 12 months of age through 12 years of age may receive the measles, mumps, rubella, and varicella vaccine, referred to as MMRV, which additionally protects against varicella (chickenpox). Most individuals who receive two doses of either the MMR or MMRV vaccine are considered vaccinated (protected) for life against measles.
According to the CDC, children need two doses of MMR or MMRV vaccines. The first dose is usually given between 12-15 months old, and the second dose is usually given between 4-6 years old. Older children, adolescents, and adults may need one or two doses of MMR if they do not have evidence of immunity (proof of vaccination) with doses separated by at least 28 days. If anyone is unsure of their vaccination status or what doses they should receive, if any, they should contact their health care provider or visit a public health clinic.
There are additional considerations for those traveling. While the recommendation has traditionally been that those traveling internationally should be fully vaccinated before such travel, with the recent rise in cases, this recommendation might be considered for any significant travel. Information on this guidance has been shared with providers statewide. To determine the action most appropriate for you or your child regarding travel, consult your health care provider or visit a public health clinic. The general travel recommendation has been that infants 6-11 months old receive one dose of the MMR vaccine before travel and then receive two more doses after their first birthday, so early notification to your provider about potential travel is best. Adults who are unsure of their vaccination status may be advised to receive one or two doses before they travel as well.
DPH has created a measles-specific web page with information about vaccinations, an FAQ on measles, and resources for administrators of congregate settings on what to do should any exposures occur.
MMR and MMRV vaccines are covered under most health care insurance plans. Verify coverage with your insurance provider. If coverage is not available, visit a public health clinic to inquire about free vaccines for children and qualifying adults.
Measles is a highly contagious viral illness and can cause severe health complications, including pneumonia, encephalitis (inflammation of the brain), and death, especially in unvaccinated persons. As of March 20, 2025, Delaware has had 0 measles cases in the past decade. DPH continues to closely monitor measles outbreaks across the country.