Table 3. Relationship between cytokine production and cytotoxicity.

BCG strain	Variable	In vitro stimulation with BCG Japanese 172 IFN-γ:IL-5 ratio	BCG-specific kill percentage*	H37Rv-specific kill percentage*
JPC	TOOL-Big	45	25	17
JPC	TOOL-Bio	695	18	4
Del DID	Age	34	15	14
DID	Age/Strain	18	17	9
JID	Strain	16	21	16

^*Antigen-specific kill for 3:1 E:T ratio.