TABLE 1.

Bacterial inocula used in the systemic infection model

Challenge strain	Dilutiona	Inoculum size (CFU/mouse)	No. of LD50sb
S. aureus MB2985	1:25 BHB	2 × 107	65
S. pneumoniae MB212	1:105 BHB	8 × 102	572
S. pneumoniae MCL4997	1:25 BHB	1.9 × 106	510
S. pneumoniae MCL4983	1:25 BHB	1.9 × 106	140
S. pneumoniae MCL5631	1:25 BHB	1.4 × 106	11
S. pyogenes MB2874	1:106 BHB	1.9 × 102	91
E. cloacae MB2646	1:5 × 103 HGM	1.4 × 105	9
E. coli MB2884	1:105 HGM	3.5 × 103	572
K. pneumoniae MB2883	1:5 × 103 HGM	1.6 × 105	516
M. morganii MB2833	1:5 × 105 HGM	5.3 × 102	104
P. aeruginosa MB2835	1:5 × 104 HGM	5.2 × 104	215
P. aeruginosa MB3286	1:5 × 104 HGM	3.3 × 104	19
P. mirabilis MB3125	1:104 HGM	2.6 × 105	297
S. marcescens MB3548	1:5 × 102 HGM	1.3 × 106	1,400

^aBacterial cultures diluted in either BHB or 5% hog gastric mucin (HGM). 

^bChallenge inoculum size equals this multiple of the LD₅₀ inoculum.