But a state with two excellent universities has that - not two flagships. Flagship is a singular term - a good reference for the word generally can be found here. In this context, flagship means, as the introduction says, the leading comprehensive public research university in a given U.S. state.
During any pregnancy a small amount of the baby's blood can enter the mother's circulation. If the mother is Rh negative and the baby is Rh positive, the mother produces antibodies (including IgG) against the Rhesus D antigen on her baby's red blood cells.
If a woman has a negative Rh factor and her partner has a positive Rh factor, she is considered to be at risk because it can cause the baby to become Rh positive. During pregnancy, the blood supplies of the fetus and the mother are separate, but there are instances it can be passed through to the child.