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US4024242A Substance having immunological activity and process for its manufacture 失效
具有免疫活性的物质及其制造方法

Substance having immunological activity and process for its manufacture
摘要:
Method of chemically attenuating trypanosomes with a phenanthridine compound, such as 3,8-diamino-5-ethyl-6-phenyl phenanthridine, to obtain non-pathogenic organisms with immunological activity; attenuated organisms produced in this way; vaccines containing such attenuated organisms.
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