TABLE 2.

Genotypic chlorhexidine resistance for individual subjects

Subjecta	Study group	Specimen type	Time to isolate collection (days)	Isolate collection date	PFGE type	mupAb	Chlorhexidine MIC (μg/ml)
A	Chlorhexidine	Clinical	49	October 2010	USA300	No	2
B	Chlorhexidine	Clinical	96	September 2011	USA300	No	2
C	Standard	Clinical	42	March 2011	USA300	Yes	4
D	Standard	Clinical	42	March 2011	USA300	Yes	4
E	Standard	Clinical	6	September 2011	USA300	Yes	2
D	Standard	Colonizing	42	March 2011	USA300	Yes	2
F	Standard	Colonizing	38	July 2010	USA300	No	1
G	Standard	Colonizing	17	July 2010	USA300	No	2
H	Enhanced standard	Colonizing	38	July 2010	USA300	No	1
I	Chlorhexidine	Colonizing	82	September 2011	USA300	No	2

^aSubjects C and D were from the same training company, and subjects B and I were from the same training company.

^bAll isolates with mupA demonstrated high-level resistance (>1,024 μg/ml) by Etest.