
doi: 10.1007/bf01268003
Removal of avian leukosis viruses (ALV), which have contaminated the yellow fever (YF) 17 D vaccine since its development in the middle 1940's, had no effect upon the antigenicity of this vaccine in rhesus monkeys. From results of plaque neutralization tests, the high degree of antigenicity of the 17 D vaccine was confirmed.
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