Abstract
In 10-week-old infants vaccinated at birth with Japanese Mycobacterium bovis BCG, the number of dermal needle penetrations correlated positively with frequency of proliferating CD4(+) T cells in whole blood following BCG stimulation for 6 days but did not correlate with secreted cytokine levels after 7 h or interferon CD4(+) T-cell frequency after 12 h of BCG stimulation.