Grange J M, Gibson J A
Dev Biol Stand. 1986;58 ( Pt A):37-41.
BCG strains differ in their ability to elicit immune reactions in mice manifesting as increases in foot pad thickness following challenges with BCG ultrasonicate antigen at different times after vaccination. When we know more about the relevance to protection of these three reactions, such timed skin testing may prove of value for determining the efficacy of BCG in man.
