[Lymphocyte transformation rate in "high risk newborn infants" in relation to the gestational and postnatal ages (author's transl)].

In 74 "high risk newborn infants" of different gestational ages (at an age of 31 ..... 42 weeks) the ability of efficiency of the cellular immunity system was examined by means of the lymphocyte transformation test on different days of the first week of the postnatal life. Beside PHA also Streptolyson O and E. coli antigen were used. We ascertained a possible relationship between the pre- or postnatal age and the lymphocyte transformation rate by means of regressive analyses. We didn't find a linear relationship; the results are discussed.