TABLE 2.

CFU recovered from subcutaneous infection chambers 2 and 8 h after inoculation^a

Rabbit	Immunizedb	CFU/ml (108) at
		2 h	8 h
1	No	8.8
2	No	7.2
3	Yes	4.4	4.2
4	Yes	4.6	4.0

^aThe cell density of cultures used for inoculum prior to concentration for injection was 6.7 × 10⁸ CFU/ml.

^bRabbits were either nonimmune or immunized against SEB.