4CMenB Pregnancy Registry: an Observational Study of the Safety of 4CMenB Exposure in Pregnant Women and Their Offspring.

4CMenB was approved by the Food and Drug Administration (FDA) in the United States in January 2015 for people aged 10 through 25 years of age. 4CMenB should be used during pregnancy only if clearly needed and sometimes, inadvertent exposure during pregnancy may also occur - before the woman knows she is pregnant, for example. The objective of this study is to evaluate the safety of 4CMenB during pregnancy and to help us learn more about the health of women who have been vaccinated with 4CMenB within 30 days prior to their last menstrual period (LMP) or at any time during pregnancy, and the health of their infants. Pregnant women within the US who received at least 1 dose 4CMenB vaccine within 30 days prior to their last menstrual period or at any time during pregnancy are eligible to participate. A woman may self-enroll in the registry by calling the pregnancy registry telephone number directly or their healthcare provider (HCP) can, with their consent, enroll them on their behalf. Alternatively HCPs may report anonymous data on pregnancy exposures and outcomes occurring within their network/health maintenance organization (HMO). The health of the woman and her infant will be followed up until the end of the pregnancy.