Table 1.

Non-confirmed and confirmed cases of catheter related bloodstream infection

Lab. no.	Skin entry	Skin control	Hub	Brush/flush	Tip roll	Blood culture
Non-confirmed
70/96	I	G/H	F/E	D/E*	B/C	A
10/97	C/H	F/G	E/B	E*	C/D	A/B
22/97	–	B/D	–	B/C*	B*	A
24/97	C	C/E	C/D	C/D*	C	A/B
25/97	D	D/E	–	C*	C	A/B
Confirmed
11/96	A/B	B	B	A*	A*	A
13/96	–	Micrococcus spp	–	A/B*	A/B	A
24/96	–	A/C	–	A*	B	A
37/96	–	C/D	–	A/B*	A	A
52/96	A	B	–	A*	A	A
69/96	D	C	A	A/B*	A*	A
79/96	–	C	–	A/B*	A	A
82/96	E	–	C/D	A*	–	A/B
90/96	–	B/C	A	A*	A*	A
06/97	Staphylococcus aureus	E	D	A/B/C*	S aureus	A
15/97	B/E	A/D	A/C	A/B*	A/B*	A
16/97	A	C/D	Gram –ve bacillus	A/B*	A	A
20/97	A	B/C	A	A*	A	A
21/97	B	A/B	A/B	A*	A/B*	A
26/97	A	A/B	A/B	A*	A*	A
40/97	A	B/C	A	A*	A/B*	A

Isolate A represents the coagulase negative staphylococci DNA fingerprint identified in the peripheral blood of each case of catheter related bloodstream infection. Letters B–I represents other distinct isolates for each case. Letters cannot be used to compare isolates in different catheter related bloodstream infection cases.

*Coagulase negative staphylococci colony counts >1000.