Cytokine responses to mycobacterial antigens in BCG vaccinated infants.

aConcentration 10 µg/ml.bDiscrepancies between number available and total number in study are due to technical failure for a few samples in the IFN-γ and IL-5 groups.cnon-responders defined as cytokine level of 0 or less after background subtracted; percentages rounded up to nearest integer.IFN-γ: interferon-gamma; IL-13: interleukin-13; IL-5: interleukin-5; PHA: phytohaemagglutinin; PPD: purified protein derivative; Ag85: antigen 85; STCF: short term culture filtrate; KMTB: killed Mycobacterium tuberculosis.