After studying reactions to the swine flu vaccine, federal health officials now say pregnant women need only one dose of the vaccine to be adequately protected.

The Centers for Disease Control says all pregnant women should get the swine flu shot. Pregnant women with H1N1 are four times more likely to end up in the hospital than anyone else, says Nassau Health Commissioner Dr. Maria Torroella Carney.

The National Institutes of Health says a new study found that more than 90 percent of pregnant women who got the vaccine had a normal reaction.

East Meadow midwife Barbara Charles says she?s urging her patients to do research and decide what?s best for them.