Experimental Immunity in Syphilis and Yaws

Henry J. NicholsDepartment of Laboratories, Army Medical School

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Summary

  1. 1. Epidemiological data suggest that yaws protects against syphilis.
  2. 2. The recent demonstration of a true immunity in syphilis throws new light on this question.
  3. 3. Experimentally, a partial immunity against syphilis can be demonstrated in rabbits which have been infected a long time with yaws and cured by arsphenamine.
  4. 4. The subject of strains must be taken in account, both in yaws and syphilis.

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