Study prompts call to examine flu vaccine and miscarriage
NEW YORK » A puzzling study of U.S. pregnancies found that women who had miscarriages between 2010 and 2012 were more likely to have had back-to-back annual flu shots that included protection against swine flu.
Vaccine experts think the results may reflect the older age and other miscarriage risks for the women, not the flu shots. Health officials said there is no reason to change government recommendation for all pregnant women be vaccinated, saying the flu itself is a much greater danger to women and their fetuses.
The Centers for Disease Control and Prevention reached out to a doctor’s group, the American Congress of Obstetricians and Gynecologists, to warn them of the study and help them prepare for a potential wave of worry from expectant moms.
Past studies have found flu vaccines are safe during pregnancy, though there’s been little research on impact of flu vaccinations given in the first three months of pregnancy.