Guidelines for the Management of Pregnant Women who come into Contact with Rubella
Establish previous rubella or rubella vaccination history in the pregnant woman.
Take a clotted blood sample and request rubella antibody titre stating full history of contact, gestation of the pregnancy, any recent illness or rash, vaccination history and results of previous tests.
If no antibodies are present, repeat tests will be needed at 28 days after exposure (or one week after the onset of an illness) to determine whether infection has been acquired.
If there is a delay between the contact and the first specimen, it may be extremely difficult to determine the susceptibility of the mother to rubella at the time of contact.
Detailed discussions with the virologists/microbiologists are then required.