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Mumps virus vaccine Pregnancy and Breastfeeding Warnings

Mumps virus vaccine is also known as: Mumpsvax

Mumps virus vaccine Pregnancy Warnings

Mumps vaccine has been assigned to pregnancy Category C by the FDA. Animal studies have not been reported. There are no controlled data in human pregnancy. There is a theoretical risk of viral transmission to the fetus. Mumps virus infection during the first trimester may increase the rate of spontaneous abortion. Although mumps vaccine virus has been shown to infect the placenta and fetus, there is no evidence of congenital malformations in humans. The manufacturer's labeling states that mumps vaccination is considered contraindicated during pregnancy and pregnancy should be avoided for 3 months following vaccination. The Advisory Committee for Immunization Practices recommends that pregnancy be avoided for 4 weeks after vaccination with the polyvalent measles/mumps/rubella vaccine, that women who become pregnant within that period be advised of the theoretical risk to the fetus, and that vaccination during pregnancy is generally not a reason to terminate the pregnancy.

Mumps virus vaccine Breastfeeding Warnings

There are no data on the excretion of mumps vaccine virus into human milk. The manufacturer recommends that caution be used when administering mumps vaccine to breast-feeding women. The U.S. Centers for Disease Control and Prevention (CDC) consider the administration of live virus vaccines compatible with breast-feeding.

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