CULTIVATION OF VACCINE VIRUS.
1. A strain of neurovaccine virus was cultivated in a medium consisting of minced chick embryo suspended in Tyrode's solution. 2. The virus upon cultivation apparently lost none of its essential characteristics. 3. The culture virus can be preserved and stored for long periods of time. Furthermore, the preserved virus can be used to initiate fresh cultures.
Hospital of The Rockefeller Institute for Medical Research.
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Rivers