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.
A potentially dangerous condition, called Rh Disease, can result when the mother is Rh negative and the baby is Rh positive. Similar to an autoimmune condition, Rh disease occurs when the Rh-negative mother's body detects Rh factor in the baby's blood and develops antibodies to protect itself.