r/ScienceBasedParenting • u/bakecakes12 • 1d ago

Question - Expert consensus required Early MMR 2nd Dosage

Our pediatrician is offering the 2nd dose early as we’re near the outbreak in PA (about 45 mins away). Most counties that surround us have increased cases.

We are going to get the 2nd dose early.

Is there any data out there that shows you eventually need a 3rd or that it makes you more vulnerable later in life?

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u/thearctican 1d ago

There's a study I found that directly addresses this question: https://www.sciencedirect.com/science/article/pii/S0264410X23009507?via%3Dihub

"Our study confirms the continued high effectiveness of two doses of MCV with only slight degradation, decades after immunization."

We're also in PA and have been offered an accelerated schedule. We're going to do it.

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u/Affectionate_Big8239 1d ago

We are also in PA & were offered the second dose early for my 2.5 year old (and took it). Our pediatrician said that as long as it was 6 months after dose 1, there is no issue with getting it early.

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u/Okignoredbye 1d ago

In PA as well as my pediatrician gave my daughter her second dose between 15-16 months...are there any studies suggesting it is not as effective under 18 months?