Anti-Gm and anti-Inv antibodies in children during the course of clinical infectious mononucleosis syndrome.

Forty-eight children with the symptoms of infectious mononucleosis were examined. In six of then anti-Gm(1) antibodies were discovered, in two anti-Gm (21), in one child anti-Inv (1).

Alpha-globulin-like antigens in bacteria.

Seventy-two strains of bacteria of the families Bacillaceae, Enterobacteriaceae and Micrococcaceae were investigated for antigens resembling Gm (1), Gm (2) and Inv (1) human immunoglobulin group factors. Antigens similar to these factors were encountered in some strains of the genus Bacillus. Staph.

Isoantibodies to human serum proteins in children after blood and plasma transfusions.

The influence of blood and blood-product therapy was studied in two groups of children: 1) 90 children who had exchange transfusion after birth because of serologic incompatibility (aged 5 months to 5 years). In 7 children of this group isoprecipitins were detected. In 4 cases they reacted probably with lipoprotein group factors.