TABLE 1.
Hemolytic activity of individual colonies isolated from rats at 18 h postinfection
| Strain | Hemolytic activity (HU)a in:
|
||
|---|---|---|---|
| Original inoculum | Colonies from cirrhotic rats | Colonies from control rats | |
| H+C+ | 640–2,560 (n = 5) | 640–5,120 (n = 4) | 640–5,120 (n = 6) |
| H+C− | 160–2,560 (n = 4) | 1,280–5,120 (n = 6) | 640–5,120 (n = 6) |
| PLY− | <20 (n = 3) | <20 (n = 3) | <10 (n = 3) |
a
The results are expressed as ranges of hemolytic units (reciprocal of the highest dilution of bacterial lysate producing 100% hemolysis of human erythrocytes) determined for individual colonies. n is the number of colonies tested from individual animals.