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Experimental cutaneous leishmaniasis. II. Effects of immunosuppression and antigenic competition on the course of infection with Leishmania enriettii in the guinea-pig.

Intradermal inoculation of the guinea-pig with Leishmania enriettii results in a self-healing cutaneous lesion which provides a laboratory model of human cutaneous leishmaniasis and which is dominated by cell-mediated immunological responses (Bryceson et al., 1970). In this study we sought to design experimental situations resembling non-healing forms of cutaneous leishmaniasis in man and to determine whether these experimental situations were accompanied by abnormalities in the immunological response to infection. This paper describes three procedures which impair the resistance of guinea-pig…