Sensitivity of Lebanese and Syrians to Toxoplasmin and to a Similar Antigen Prepared from Leishmania Tropica

Kamal Abou DaoudDepartment of Tropical Health, Schools of Public Health and Medicine, American University of Beirut, Beirut, Lebanon

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Calvin W. SchwabeDepartment of Tropical Health, Schools of Public Health and Medicine, American University of Beirut, Beirut, Lebanon

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Summary

  1. 1. Fifty-seven per cent of 129 Lebanese and Syrians tested with toxoplasmin gave positive reactions. Sixty-five per cent of the Syrians and 46 per cent of the Lebanese were positive. Seventy per cent of Moslems tested were toxoplasmin-positive as compared to 55 per cent of Christians.
  2. 2. Of 51 individuals with leishmanial scars, 46 gave positive skin reactions to a toxoplasminlike antigen prepared from Leishmania tropica. Nine individuals without leishmanial scars were also positive to the leishmanial antigen.
  3. 3. There appeared to be no cross-sensitization to skin test antigens prepared from Toxoplasma gondii and Leishmania tropica.
  4. 4. Presently available information concerning the epidemiology of toxoplasmosis and leishmaniases in Lebanon and Syria is briefly discussed with particular regard to recent observations.

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