But the study is a reminder of just how problematic and tricky flu can be, especially in pregnancy, Siegel said. "Pregnant women should get flu shots, especially the H1N1 shot," he said.
The U.S. Centers for Disease Control and Prevention agrees that the best protection against the flu is to get vaccinated. This year, that means getting a seasonal flu shot and an H1N1 flu shot when the vaccine is available.
Because pregnant women are at a high risk for complications from the flu, the CDC has put them at the front of both the seasonal and H1N1 vaccine line.
"If you are a woman of reproductive age and likely to be pregnant, be very sure you have gotten vaccinated," Finch advised.
The U.S. Department of Health and Human Services has more information on flu at its Web site flu.gov.
SOURCES: Caleb Finch, Ph.D., professor and director, Gerontology Research Institute, University of Southern California, Los Angeles; Marc Siegel, M.D., associate professor, medicine, New York University School of Medicine, New York City; Oct. 1, 2009, Journal of Developmental Origins of Health and Disease
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