Experimental Immunity in Syphilis and Yaws

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  • Department of Laboratories, Army Medical School
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  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.