Pregnant women at higher risk of death from influenza . Creech says past flu studies have found that when women get flu shots before giving birth , they help build immunity for their child that is particularly helpful during the infant 's first few months of life . Clinical trials on pregnant women still under way . 34 % of women infected with the H1N1 virus were pregnant .
Pregnant women at higher risk of death from influenza . Clinical trials on pregnant women still under way . 34 % of women infected with the H1N1 virus were pregnant .