SINCE the original reports by Gregg1 and Swan,2 it has been appreciated that rubella contracted during the first trimester of pregnancy can result in an infant born with malformations. It has become commonplace in evaluating deformed babies to ask about maternal illness in the first trimester—specifically rubella, with rash and fever. However, rubella may fail to show the typical rash, and may be manifested only by posterior auricular nodes, or may even be entirely subclinical.3 The cases which comprise the present report demonstrate that rubella, documented by virus isolation, can occur in the offspring of pregnancies in which no history of rubella in the mother can be elicited.
A further difficulty is evident since the recent isolation of rubella virus from infants born of pregnancies complicated by maternal rubella.4 In cases of newborns with only patent ductus arteriosus (PDA) or only cataracts, when the maternal
AVERY GB, MONIF GGR, SEVER JL, LEIKIN SL. Rubella Syndrome After Inapparent Maternal Illness. Am J Dis Child. 1965;110(4):444–446. doi:10.1001/archpedi.1965.02090030464015
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