PMID(sorted descending)
lipoidal antigen and tpi reactions in sera from ethiopia. effect of long-distance serum transportation on order to evaluate results obtained in addis ababa with lipoidal antigen tests for syphilis on 269 human sera, and, if possible, to determine how many positive seroreactors were in fact infected with treponema pallidum, these sera were sent by air to copenhagen for re-examination by the vdrl, kahn, cwrm and tpi tests.approximately 60% of sera reactive in vdrl tests in ethiopia were also vdrl-reactive in copenhagen, and some 75% were tpi-reactive. as the same vdrl techniques were used in the tw ...196414163960
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