[Indicators of immunologic reactivity and the alpha fetoprotein level in newborn infants with thymomegaly and bronchopneumonia].

Forty-two newborns with bronchopneumonia were under observation. Of these, 22 also presented with thymomegaly . The acute disease period was characterized by higher concentrations of alpha-fetoprotein and the decrease of the transforming activity of lymphocytes in response to phytohemagglutinin in newborn patients with thymomegaly as compared to the same parameters in newborn patients without thymomegaly . Study into correlative interrelations has revealed a significant reverse relation between the content of alpha-fetoprotein and IgG.