Abstract
Conclusion
Hamsters and white mice are suitable animals for testing virulence of Streptococcus hemolyticus when injected by the intracerebral route. It requires only 40-400 organisms to kill the animal when given intracerebrally, whereas it requires 400,000 when given interpleurally and 4,000.000-11,500,000 when given intraabdominally and intravenously.
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