1887

Abstract

Summary

Intracerebral infection of mice with low-virulence strains of was greatly enhanced by the prior administration of cortisone acetate subcutaneously or of vitamin-A alcohol or streptolysin O intracerebrally.

The infections did not appear to stimulate the release of lysosomal enzymes in the brain.

When normal mice were X-irradiated to the head, with the body shielded, subsequent intracerebral infection with low-virulence strains was very much enhanced. Irradiation of the head alone did not affect the survival of actively immunised mice after the intracerebral injection of either high-virulence or low-virulence strains, but irradiation of the body, with the head shielded, significantly reduced the number of survivors after infection with a high-virulence strain.

It appears that a cerebral glial response controls intracerebral infections with low-virulence strains in normal mice, but that circulating leucocytes play a major role in controlling infections with high-virulence strains in immunised mice.

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/content/journal/jmm/10.1099/00222615-3-1-15
1970-02-01
2020-01-19
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