Table 1

Determination of LD50 of S.Typhimurium strains in mice.

Number of dead mice/Number of infected mice

(Mean of days to death)

Dose (CFU/mouse)

S. Typhimurium ATCC 14028

S. Typhimurium 14028 ΔyqiC::CAT


1 × 101

3/7 (6)

0/7

1 × 102

7/7 (6.7)

0/7

1 × 103

6/6 (5.5)

0/6

1 × 104

6/6 (4.5)

0/6

1 × 105

6/6 (4)

0/6


Groups of the indicated number of mice were inoculated intraperitoneally with different doses of S. Typhimurium ATCC or S. Typhimurium strain and survival was recorded for up to 30 days.

Carrica et al. BMC Microbiology 2011 11:95   doi:10.1186/1471-2180-11-95

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