Toxoplasmosis. The protean manifestations of the condition and their significance in pregnancy and in newborn infants.

Toxoplasmosis is a relatively common and generally mild parasitic infection which can, however, produce fatal and crippling complications under certain conditions - particularly when a human fetus or a newborn infant is infected. In this instance, the infection is the result of a spread of the acquired disease which may occur in the mother in the last six months of pregnancy. Although the infection of adults can be dangerous and fatalities have been reported, the danger to the nervous system, eyes and other structures of the newborn infant can be devastating-blindness, brain damage and mental deficiency, particularly as the result of an obstruction to the flow of circulating cerebrospinal fluid within the brain. This report covers a number of differing features of the disease which have been described separately by other authors in specialty journals and in the foreign literature. If present, these signs should suggest toxoplasmosis, particularly in pregnancy, in the newborn infant and in still-born infants. Early diagnosis is of paramount interest in view of the poor response which may be obtained in the treatment of subacute and chronic phases of the illness. Difficulties in diagnosis stem from the manifestations of toxoplasmosis which closely resemble the symptoms of other infectious diseases. The clinical laboratory diagnosis is made by the isolation of the organism or by the demonstration of immune protein in the patient's serum.