TABLE 2.

Kinetics of infection in 3-week-old chickens simultaneously administered E. coli K1⁺ intracranially (10³ CFU) and bacteriophage intramuscularly (10⁸ PFU)

Time (h) postinfection	E. coli count (log10 CFU/g) in:			Phage count (log10 PFU/g) in:
	Spleen	Blood	Brain	Spleen	Blood	Brain
E. coli only
0	<2a	<2	<2	<2	<2	<2
3	4.1	2.0	4.2	<2	<2	<2
6	4.7	3.7	6.4	<2	<2	<2
12	5.4	5.2	8.2	<2	<2	<2
24	—b	—	—	—	—	—
E. coli and phage
0	<2	<2	2.6	<2	3.1	<2
3	2.8	1.6	4.2	7.2	6.5	3.8
6	3.9	2.1	5.5	6.6	6.4	7.3
12	3.0	<2	3.3	6.7	6.6	7.6
24	<2	<2	4.3	7.1	4.3	7.2
48	<2	<2	1.7	6.9	1.6	4.2
120	<2	<2	1.2	5.9	<2	<2

^a<2 = <100. 

^b—, all birds dead.