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Does concomitant hiv infection has any epidemiological, clinical, immunopathological and therapeutic relevance in leprosy?

Abstract
Co-infection with HIV-1 and M. Leprae is a rare event in endemic areas for leprosy and HIV, such as India. Neither an increased HIV prevalence among leprosy cases, nor any rapid progression to AIDS was observed among dual HIV-leprosy infections. The current situation concerning continued new leprosy case-detection and gradual increase in HIV infection in India and a few other developing countries, such as Brazil, emphasizes the importance of monitoring the occurrence of co-infections. There is so far no change in the clinical spectrum of leprosy, PB/MB ratio, leprosy reactions and neuritis among co-infected patients. All types of leprosy occur in HIV patients [except in one study (Borgdorff et al, 1993) where more MB leprosy cases with HIV infection were seen]. Histopathological observations reveal a normal spectrum of appearance in biopsies of leprosy lesions from co-infected patients suggesting that cell-mediated immune response to M leprae is preserved at the site of the disease, despite evidence that these responses are abrogated systemically. All dual infection cases respond to regular treatment, except in three studies which noted more relapses. Therefore, a longer duration of surveillance is advisable after fixed duration therapy, for the detection of early relapse. Type 2 reaction can be managed with a higher dose of clofazimine. Type 1 reaction when developed as such, or as IRIS, needs oral steroids in adequate doses, particularly when associated with neuritis and motor loss, since lower doses may not be able to reverse the motor loss even of early onset. However, higher doses of corticosteroid when given need to be monitored closely. The impact of immune restoration in co-infected patients receiving ART is commonly observed in cases with borderline leprosy.
AuthorsH K Kar, P Sharma
JournalIndian journal of leprosy (Indian J Lepr) 2007 Jan-Mar Vol. 79 Issue 1 Pg. 45-60 ISSN: 0254-9395 [Print] India
PMID17578267 (Publication Type: Journal Article, Review)
Topics
  • Adult
  • Animals
  • Female
  • HIV Infections (complications, epidemiology)
  • Humans
  • Leprosy (complications, epidemiology, immunology, pathology)
  • Male
  • Middle Aged

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