US Pharm. 2010;35(10):88. 

The American College of Obstetricians and Gynecologists (ACOG) released a report published in Obstetrics & Gynecology supporting influenza vaccination during pregnancy. The CDC's Advisory Committee on Immunization Practice says all women who will be pregnant during the influenza season should receive flu vaccines. No study to date, the report says, has shown any adverse effect of inactivated influenza vaccine on either mother or child. The ACOG Committee on Obstetric Practice supports the CDC stance, recommending vaccination early in the flu season, which runs from October through May in the U.S., without regard to gestational age at the time of vaccination. Even late in the flu season, an unvaccinated pregnant women should still get the vaccine, the report states.