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Induction of delayed-type hypersensitivity to Mycobacterium leprae in healthy individuals.

AbstractDelayed-type hypersensitivity (DTH) to a soluble Mycobacterium leprae skin test antigen (SML) was successfully induced in healthy volunteers following immunization with 2 X 10(8) killed armadillo-derived M. leprae. No better sensitization was obtained by a mixture of live BCG and killed M. leprae. The relative specificity of the DTH reaction to SML has been demonstrated in this study, since little cross-reactivity was observed to PPD, after immunization with BCG ro M, leprae alone, or combined. Moreover, armadillo-derived M. leprae readily induced a specific hypersensitivity with the time course DTH response associated with protective immunity suggesting that this bacterial preparation may be a candidate for an effective anti-leprosy vaccine.
AuthorsA H Smelt, R J Rees, F Y Liew
JournalClinical and experimental immunology (Clin Exp Immunol) Vol. 44 Issue 3 Pg. 501-6 (Jun 1981) ISSN: 0009-9104 ENGLAND
PMID7035030 (Publication Type: Clinical Trial, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
Chemical References
  • Antigens, Bacterial
Topics
  • Adolescent
  • Adult
  • Antigens, Bacterial (immunology)
  • Female
  • Humans
  • Hypersensitivity, Delayed
  • Immunization
  • Mycobacterium bovis (immunology)
  • Mycobacterium leprae (immunology)
  • Skin Tests
  • Time Factors