A pregnant woman who gets a flu shot passes protection on to her fetus that lessens the newborn’s likelihood of contracting the flu during the first months of life, researchers report in the Oct. 9 New England Journal of Medicine.
Although the vaccine has been shown to be safe, no randomized trial has evaluated the shot’s effectiveness in a clinical setting — until now.
“I think this will now make a difference,” says study
coauthor Mark Steinhoff, a pediatrician at
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