MMRV Vaccine: CDC Guidelines & Recommendations

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The MMRV vaccine is a combination vaccine that protects against measles, mumps, rubella, and varicella (chickenpox) in a single shot. It is licensed for use in children 12 months through 12 years of age.

The Centers for Disease Control and Prevention (CDC) recommends that all children receive two doses of MMRV vaccine:

  • The first dose at 12 through 15 months of age
  • The second dose at 4 through 6 years of age

Benefits of the MMRV Vaccine

The MMRV vaccine is very effective at preventing measles, mumps, rubella, and varicella. Studies have shown that two doses of MMRV vaccine are about 99% effective at preventing measles, 88% effective at preventing mumps, 97% effective at preventing rubella, and 80-90% effective at preventing varicella.

Measles

Measles is a highly contagious viral infection that can cause fever, rash, cough, and runny nose. In some cases, measles can lead to serious complications, such as pneumonia, encephalitis (brain inflammation), and death.

Mumps

Mumps is a viral infection that can cause fever, headache, muscle aches, and swelling of the salivary glands. In some cases, mumps can lead to serious complications, such as meningitis (inflammation of the membranes surrounding the brain and spinal cord), encephalitis, and deafness.

Rubella

Rubella (German measles) is a viral infection that can cause fever, rash, and swollen lymph nodes. Rubella can be especially dangerous for pregnant women, as it can cause serious birth defects in their babies.

Varicella

Varicella (chickenpox) is a highly contagious viral infection that causes an itchy, blistering rash. In some cases, varicella can lead to serious complications, such as pneumonia, encephalitis, and bacterial skin infections.

Risks of the MMRV Vaccine

The MMRV vaccine is generally very safe. However, like all vaccines, it can cause side effects. The most common side effects of the MMRV vaccine are mild and include:

  • Fever
  • Rash
  • Pain, redness, or swelling at the injection site

Serious side effects from the MMRV vaccine are very rare. These can include:

  • Seizures
  • Encephalitis
  • Temporary low platelet count (which can cause easy bruising or bleeding)

Who Should Not Get the MMRV Vaccine?

The MMRV vaccine is not recommended for everyone. You should not get the MMRV vaccine if you:

  • Have ever had a severe allergic reaction to any component of the vaccine
  • Have a weakened immune system due to a medical condition or medication
  • Are pregnant or may become pregnant within the next four weeks

Talk to your doctor if you have any questions or concerns about the MMRV vaccine.

Conclusion

The MMRV vaccine is a safe and effective way to protect your child from measles, mumps, rubella, and varicella. The CDC recommends that all children receive two doses of the MMRV vaccine. If you have any questions or concerns about the MMRV vaccine, talk to your doctor.