Table 2. Survival of fipA, and ΔfipAB mice after intranasal inoculation.
| Strain | Relevant genotype | # of mice | Inoculation dose (CFU)1 | Days to Death2 |
| Schu S4 | 4 | 10 | 5,5,5,5 | |
| BJM1068 | ΔfipA | 3 | 28 | 7,7,8 |
| BJM1068 | ΔfipA | 3 | 280 | 6,7,8 |
| BJM1068 | ΔfipA | 2 | 2800 | 5,6 |
| BJM1069 | ΔfipAB | 4 | 7×107 | Survived >30 days |
| BJM1076 | ΔfipAB-fipA+B+ | 3 | 10 | 6,6,7 |
| BJM1076 | ΔfipAB-fipA+B+ | 3 | 100 | 6,6,6 |
| BJM1076 | ΔfipAB-fipA+B+ | 3 | 1000 | 5,5,5 |
| BJM1076 | ΔfipAB-fipA+B+ | 4 | 4.3×104 | 4,4,4,4 |
| BJM1077 | ΔfipAB-fipA+fipB C164A | 4 | 8.8×107 | Survived >30 days |
| BJM1078 | ΔfipAB-fipA+fipB C167A | 4 | 3.4×107 | 4,4,4,4 |
| BJM1078 | ΔfipAB-fipA+fipB C167A | 4 | 3.4×104 | 8,8,8,8 |
| BJM1078 | ΔfipAB-fipA+fipB C167A | 4 | 270 | 9,9,9,10 |
| BJM1078 | ΔfipAB-fipA+fipB C167A | 4 | 27 | 9,10,10, >20 days |
1
C57/BL6 mice were intranasally challenged with the indicated inoculum dose, which was confirmed by plating the inoculum.
2
Indicates the number of days after challenge that mice showed the first signs of irreversible mortality, and were euthanized. Mice were followed for a minimum of 20 days. Similar to the ΔfipAB mutant, mice similarly challenged with the ΔfipB mutant survive for more than 30 days without any signs of infection [14].