Cohen HA.
The delayed hypersensitivity against the leishmania parasite was restored to a patient who had suffered from diffuse cutaneous leishmaniasis (DCL) for 26 years, by the application of an ointment containing heat-killed and lyophilized BCG and cord-factor (trehalose-6-6'-dimycolate) after stripping the affected and adjacent areas with scotch-tape.
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