Published online by Cambridge University Press: 15 May 2009
The following conclusions were drawn from these experiments with bovine group B streptococci:
1. A relationship existed between lethal power and the number of living organisms inoculated, and, therefore, the number of living organisms inoculated must be determined when the killing power of a strain is under investigation.
2. Equal doses of the same strain were likely to kill more mice, but less rapidly, when inoculated intravenously than when inoculated intraperitone-ally.
3. Virulence for mice might be related to serological type.
4. The disease caused by intraperitoneal inoculation of strain S 13 was a rapidly fatal peritonitis with concomitant bacteraemia.
5. The disease caused by intravenous inoculation of strain S13 was a fatal bacteraemia with a tendency for the streptococci to form dense clumps in widely separated tissues.