Study shows flu shots pose no danger to pregnant women

Nicole Andreacchio, second from right, waits in line to receive the swine flu vaccine in Montgomery County, Pa.

Associated Press (2009)

Nicole Andreacchio, second from right, waits in line to receive the swine flu vaccine in Montgomery County, Pa.

NEW YORK — A large study offers reassuring news for pregnant women: It's safe to get a flu shot.

The research found no evidence that the vaccine increases the risk of losing a fetus, and may prevent some deaths. Getting the flu while pregnant makes fetal death more likely, the Norwegian research showed.

The flu vaccine has long been considered safe for pregnant women and their fetus. U.S. health officials began recommending flu shots for them more than five decades ago, following a higher death rate in pregnant women during a flu pandemic in the late 1950s.

But the study is perhaps the largest look at the safety and value of flu vaccination during pregnancy, experts say.

"This is the kind of information we need to provide our patients when discussing that flu vaccine is important for everyone, particularly for pregnant women," said Dr. Geeta Swamy, a researcher who studies vaccines and pregnant women at Duke University Medical Center.

The study was released by the New England Journal of Medicine on Wednesday as the United States and Europe suffer through an early and intense flu season. A U.S. obstetricians group this week reminded members that it's not too late for their pregnant patients to get vaccinated.

The new study was led by the Norwegian Institute of Public Health. It tracked pregnancies in Norway in 2009 and 2010 during an international epidemic of a new swine flu strain.

Before 2009, pregnant women in Norway were not routinely advised to get flu shots. But during the pandemic, vaccinations against the new strain were recommended for those in their second or third trimester.

The study focused on more than 113,000 pregnancies. Of those, 492 ended in the death of the fetus. The researchers calculated that the risk of fetal death was nearly twice as high for women who weren't vaccinated as it was in vaccinated mothers.

Study shows flu shots pose no danger to pregnant women 01/16/13 [Last modified: Wednesday, January 16, 2013 11:15pm]

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