TABLE 3.

Durability of inhibitory activity of longitudinal segments of the NFC and SHC during serial daily transfer to fresh culture plates

Organism	Isolate	Level of resistance	Daily level of inhibition and total duration of inhibition by:
			NFC						SHC
			Inhibition zone size (mm) on:					Duration of inhibition (days)	Inhibition zone size (mm) on day 1c	Duration of inhibition (days)
			Day 1	Day 2	Day 3	Day 4	Day 5b
E. coli	11	MDR	4.0	3.3	0.3	0	0	3	0	0
	12	MDR	5.5	2.5	1.5	0.8	0.5	5	0	0
K. pneumoniae	23	MDR	4.0	0	0	0	0	1	0	0
	26	MDR	4.5	1.4	0	0	0	2	0	0
C. freundii	2	MDR	5.5	3.5	2.5	0	0	3	0	0
	4	MDR	6.0	0.6	0	0	0	2	0	0
S. aureus	43	MDR	4.0	3.3	0.8	0.4	0	4	1.3	1
	45	MDR	6.0	3.3	0.9	0.6	0	4	1.5	1
Coagulase-negative staphylococci	57	MDR	4.3	2.3	0.8	0	0	3	0.5	1
	58	MDR	4.3	3.0	0.3	0	0	3	2.8	1
E. faecium	1,051	Sa	0.9	0.3	0	0	0	2	0	0
	1,095	S	3.0	1.5	0	0	0	2	0	0

^aS, susceptible. 

^bNo inhibition observed beyond day 5. 

^cNo inhibition observed beyond day 1.