The measles vaccine is the most effective way to prevent measles, a highly contagious viral disease. It is usually given as part of the MMR (Measles, Mumps, and Rubella) vaccine or the MMRV (Measles, Mumps, Rubella, and Varicella) vaccine.
Types of Measles Vaccines
- MMR Vaccine – Protects against Measles, Mumps, and Rubella
- MMRV Vaccine – Protects against Measles, Mumps, Rubella, and Chickenpox (Varicella)
Both vaccines are live attenuated vaccines, meaning they contain a weakened form of the virus that stimulates immunity without causing illness.
Recommended Schedule for Measles Vaccination
According to the CDC (Centers for Disease Control and Prevention):
For Children:
- First dose: 12-15 months old
- Second dose: 4-6 years old
💡 Children who missed early vaccinations can receive two doses at least 28 days apart.
For Adults:
- Born before 1957? Likely already immune due to past infections.
- Born after 1957? At least one dose recommended.
- Healthcare workers, college students, and international travelers? Two doses are recommended.
Effectiveness of the Vaccine
- One dose: 93% effective in preventing measles
- Two doses: 97% effective in preventing measles
- Immunity is lifelong in most cases.
Who Should NOT Get the Vaccine?
- Pregnant women (should wait until after delivery)
- People with severe allergies to vaccine ingredients (like gelatin or neomycin)
- Individuals with weakened immune systems (HIV/AIDS, chemotherapy patients, organ transplant recipients)
Possible Side Effects
Most side effects are mild and temporary:
- Soreness at injection site
- Mild fever or rash
- Temporary joint pain (mostly in adults)
Rare but serious reactions:
- Severe allergic reactions (anaphylaxis) – very rare
- Seizures due to fever – rare
