@Sgoldberg247 now that routine screenings are recommended by the CDC and acog you are absolutely right that the transmission is lower. The problem is, traditional culture methods of detection can still miss positives. It's not surprising that someone would test positive once and then negative the next time, because we are hoping the bug will grow on a plate and it doesn't always do that. In addition, the person reading the plate might miss the positive. Typically a person is treated the next time. I'm a huge advocate for better detection which can be even improved further. GBS complications can be even more severe than what you mentioned. I think every woman should know what types of methods their hospital is using to detect gbs.