Table 3.
Serum IL-6 levels in mice infected with SH1000 or fnb mutant strainsa
| Strain | IL-6 concn (pg/ml serum) at: |
|
|---|---|---|
| 5 h | 24 h | |
| SH1000 | 235 ± 28 (a) | 50 ± 7.5 (e) |
| JS1078 (A−) | 101 ± 47 (b) | 56 ± 8.5 (f) |
| JS2072 (B−) | 192 ± 132 (c) | 48 ± 6.0 (g) |
| JS3094 (A−/B−) | 129 ± 16 (d) | 50 ± 5.2 (h) |
a
BALB/c mice were intravenously infected with SH1000 or fnb mutant strains (5 × 107 CFU/head). After 5 or 24 h, serum was removed from the collected blood and the concentration of IL-6 was measured by ELISA. P < 0.01 for a versus b and a versus d.