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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Are The Conception Risks During MMR Immunization?

A new OB patient was immunized with the MMR vaccine on January 25, LMP January 12. We will be doing an ultrasound to confirm her dates In a couple of weeks, but what is the true risk of her conceiving about the time of the immunization? My understanding is that the true risk is very low.
Wed, 26 Oct 2016
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OBGYN,  's  Response
Hi there, I have understood your concern. I will suggest you the best possible treatment options.

1 ) First of all do not panic.

2 ) As you might be aware that in a woman with regular cycles day 10 to 20 of the cycle is the most fertile period of cycle. If the woman happens to have unprotected sex act in the fertile period, then she can get pregnant.

3 ) I will suggest that the immunisation with MMR vaccine is with live attenuated strains. As such the risk of disease transmission is not there.

4 ) Anyway, she needs to confirm or rule out the pregnancy with morning's first sample of urine tested for pregnancy. In case of doubt blood beta HCG test and USG will be of help.

In case of negative pregnancy test results, there is need to worry.
Even with positive pregnancy test, USG done at intervals will be of help.

I hope this answer helps you.
Thanks.
Dr. Purushottam Neurgaonkar.
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What Are The Conception Risks During MMR Immunization?

Hi there, I have understood your concern. I will suggest you the best possible treatment options. 1 ) First of all do not panic. 2 ) As you might be aware that in a woman with regular cycles day 10 to 20 of the cycle is the most fertile period of cycle. If the woman happens to have unprotected sex act in the fertile period, then she can get pregnant. 3 ) I will suggest that the immunisation with MMR vaccine is with live attenuated strains. As such the risk of disease transmission is not there. 4 ) Anyway, she needs to confirm or rule out the pregnancy with morning s first sample of urine tested for pregnancy. In case of doubt blood beta HCG test and USG will be of help. In case of negative pregnancy test results, there is need to worry. Even with positive pregnancy test, USG done at intervals will be of help. I hope this answer helps you. Thanks. Dr. Purushottam Neurgaonkar.