[Congenital toxoplasmosis in two newborn infants (author's transl)].

Two newborn infants with congenital toxoplasmosis despite serological testing during pregnancy were observed at our premature and neonatal intensive care unit within a short time of one another. In one case the counter-regulatory late first test, performed only in the 26th week, was positive with a high titre. The immediately recommended treatment was not carried out. Apart from the signs of congenital generalized infection, the newborn infant already manifested chorioretinitis and encephalitis. In the second case the initially serologically-negative pregnant women became infected only during the 35th to 36th week of gestation, around the time of the third serological examination. The child was born with slight signs of general infection, but without CNS involvement. Immediate postnatal treatment resulted in complete cure. This shows that such rare cases which can no longer be detected by serological testing can be treated postnatally with good results.