You may think the measles vaccine offers complete protection, but could you still get infected? Here’s what experts are saying about this possibility.
The Centers for Disease Control and Prevention has issued an important reminder about the measles vaccine, stressing that even fully vaccinated individuals can still contract the disease in rare cases.
As measles outbreaks continue to spread in certain areas, it’s crucial to understand the vaccine’s effectiveness, who remains at risk, and what to do if you’ve been exposed.
Key facts about measles and vaccination
- Vaccination protection: The CDC defines individuals as protected against measles if they have received two doses of the measles-containing vaccine, especially if they are school-aged, healthcare personnel, or international travelers. For preschool-aged children or adults in low-risk settings, one dose is considered sufficient.
- Vaccine effectiveness: While the measles vaccine is highly effective, it’s possible, though rare, for fully vaccinated individuals to contract the virus. About three out of 100 people who have received two doses of the measles vaccine may still get measles if exposed. Experts are still unsure why some vaccinated people may not respond as well to the vaccine, but the good news is that those who do contract the virus typically experience a milder form of illness. Additionally, fully vaccinated individuals are less likely to spread measles to others, including those who cannot be vaccinated, such as infants or individuals with weakened immune systems.
- International travel and immunity: The CDC advises travelers to ensure they are up-to-date on their measles vaccinations at least two weeks before traveling abroad. If you’re unsure about your vaccination status, contacting your healthcare provider is recommended.
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What to do if you’ve been exposed to measles
If you’ve been in contact with someone diagnosed with measles, the CDC urges you to contact your healthcare provider immediately. If you’re not immune, your provider may recommend the MMR (measles, mumps, rubella) vaccine or immune globulin to help prevent the disease.
Additionally, staying home and avoiding public places for the duration of the incubation period is essential to prevent spreading the virus.
Measles symptoms and treatment
Common measles symptoms include a high fever, cough, runny nose, and a characteristic rash that usually begins on the face and spreads. If you suspect you have measles, contact your healthcare provider right away.
Infected individuals should remain isolated for at least four days after the rash appears to prevent transmission.
Despite its rarity in vaccinated individuals, measles remains highly contagious, and the CDC stresses the importance of vaccination for continued public health protection. With global travel and outbreaks on the rise, ensuring you’re fully vaccinated remains a critical step in protecting yourself and others from this preventable disease.
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