1921
Volume 5, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Summary

An improved antigen for the complement fixation test was prepared by extracting desiccated, cultured with anhydrous ether in the cold (-15° to -18° C.) prior to final extraction with alkaline buffer. Preliminary extraction with ether markedly reduced the tendency of the antigen to react with sera from syphilitic and healthy individuals, and had no appreciable effect upon its capacity to react specifically with antibody produced in American trypanosomiasis (Chagas' disease).

Persons infected with could not be differentiated from individuals with American trypanosomiasis on the basis of their serologic reactions with antigen.

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/content/journals/10.4269/ajtmh.1956.5.763
1956-09-01
2017-11-22
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