The theory was tested in 340 pregnant women in Bangladesh.
Results showed a 63 percent reduction in flu among babies whose mothers had the flu shot.
There's more on this study in this week's New England Journal of Medicine.
The theory was tested in 340 pregnant women in Bangladesh.
Results showed a 63 percent reduction in flu among babies whose mothers had the flu shot.
There's more on this study in this week's New England Journal of Medicine.