Abstract
Quantitative immunoglobulin levels (IgG, IgA and IgM) were determined in 200 infants and children ranging in age from 2 months to 15 years, using the Hyland “Immunoplate” technique. The mean values obtained ranged from 346 mg. % for IgG in the youngest age group to 814 mg. % in the oldest; for IgA the mean values ranged from 49 mg. % in the youngest age group to 114 mg. % in the oldest; for IgM the mean values ranged from 47 mg. % in the youngest age group to 97 mg. % in the oldest age group. The method used proved to be reproducible from day to day and was much more rapid than a previously used double-diffusion technique.
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Selected References
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