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Updated: Aug 11, 2026

Determining the Phagocytic Activity of Clinical Antibody Samples
Published on: November 30, 2011
Natural antibodies in healthy adults
Abstract:
The serum of 100 adults living in Budapest was examined for isohaemagglutinin titre with haemaglutination, for staphylococcal-antitoxin titre with haemolysis inhibition and for bacterial antibody titre against 17 different groups of bacteria with passive haemagglutination. Antibody levels in males, except for certain bacterial antibodies, were somewhat lower than in females. The antibody titres, especially in men, decreased gradually from 20 to 50 years of age and were usually lower in Rh negative than in Rh positive persons.
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