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Does vitamin A prevent measles?

The Claim

Vitamin A prevents measles.

The Facts

Vitamin A does not prevent or cure measles. It may help prevent the worst outcomes for vitamin A-deficient children already sick with measles.

The Truth

The safest and only reliable way to prevent measles is with the MMR (measles-mumps-rubella) vaccine.

What we're hearing:

Vitamin A prevents measles.

What we're hearing:

Vitamin A prevents measles.

What's true:

Vitamin A has been used as a supportive treatment to help prevent the most serious symptoms in children who already have measles.

What's missing?

Vitamin A is not a cure for measles, and the effectiveness of its use as treatment is limited. The evidence suggests it mainly benefits populations with high rates of vitamin A deficiency. In the U.S. today, fewer than 1% of people are vitamin A deficient.

Giving vitamin A to a child who isn’t deficient can lead to overdose. The MMR vaccine, by contrast, has been shown to be very safe and offer 97%-99% protection against contracting measles.

What's at stake:

Relying on vitamin A for prevention or treatment of measles puts kids at risk for serious illness and complications. Supplementing vitamin A without the guidance of a pediatric professional risks toxicity.

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Bottom line:

Vitamin A won’t prevent or cure measles. The MMR vaccine is still the safest, most effective method of protection.

Photo fo Provider

Michael Bigham, MD, MBA, FAAP, FCCM, and father of three

Chief Quality Officer; Pediatric Intensivist

Dr. Michael Bigham’s experience as a pediatric ICU physician has given him firsthand insight into the serious impact vaccine-preventable illnesses can have on children. As Akron Children’s chief quality officer, he helps ensure the hospital’s care reflects the latest evidence-based medical standards, including immunization recommendations and their role in protecting child health.

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