TABLE 2.

Bacterial densities in vegetations and spleens of rats that developed experimental endocarditis after challenge with inoculum sizes equal to the 60% infections dose of the parent strain Newman

S. aureus strain	Clf phenotype	Median (25%–75%) bacterial density in infected tissues (CFU/g)
		Vegetations	Spleens
Newman	ClfA+ ClfB+	7.44 (5.34–8.10)	3.51 (2.91–4.02)
DU5852	ClfA− ClfB+	6.93 (6.31–7.90)	2.80 (2.63–4.63)
DU5943	ClfA+ ClfB−	7.90 (7.37–8.21)	3.66 (2.61–4.62)
DU5944	ClfA− ClfB−	7.72 (7.40–7.96)	3.25 (2.62–4.45)
DU5943(pCU1-clfB+)	ClfA+ ClfB+ (complemented)	7.26 (5.09–7.86)	2.96 (2.49–4.61)
DU5944(pCU1-clfB+)	ClfA− ClfB+ (complemented)	6.58 (4.62–7.40)	3.46 (3.12–4.61)