The immune response to vaccination in undernourished and well-nourished Nigerian children

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Abstract
The immune response of young Nigerian children to a full course of infant immunizations was studied in relation to their nutritional state at the time of vaccination. No significant correlations were found between anthropometric measurements made at the time of vaccination and the antibody response to triple, polio, measles, meningococcal and typhoid vaccines. Significant correlations were found between serum pre-albumin levels and the response to group A meningococcal polysaccharide vaccine and between serum albumin levels and the response to group C meningococcal polysaccharide vaccine. These correlations may reflect the depressive effect of malaria both on serum albumin and pre-albumin levels and on immune responsiveness to meningococcal polysaccharides. No significant correlations were found between nutritional state at the time of BCG vaccination and the development of a positive tuberculin reaction five weeks later. We conclude that under-nutrition has little or no effect on the immune response to vaccines used in routine infant immunization programmes.