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dc.contributor.authorSilva, Giselle Aparecida Fagundespt_BR
dc.contributor.authorRomero, Gustavo Adolfo Sierrapt_BR
dc.contributor.authorCupolillo, Elisapt_BR
dc.contributor.authorYamashita, Ellen Priscila Gadelhapt_BR
dc.contributor.authorSilva, Adriano Gomespt_BR
dc.contributor.authorGuerra, Jorge Augusto de Oliveirapt_BR
dc.contributor.authorCruz, Alda Maria dapt_BR
dc.identifier.citationFAGUNDES-SILVA, Giselle Aparecida et al. Leishmania (Viannia) naiffi: rare enough to be neglected? Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 110, n. 6, p. 797-800, set. 2015. Disponível em: <>. Acesso em: 9 maio 2018. doi:
dc.publisherInstituto Oswaldo Cruz, Ministério da Saúdept_BR
dc.rightsAcesso Abertopt_BR
dc.titleLeishmania (Viannia) naiffi : rare enough to be neglected?pt_BR
dc.rights.licenseMemórias do Instituto Oswaldo Cruz - This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). Fonte: Acesso em: 9 maio 2018.-
dc.description.abstract1In the Brazilian Amazon, American tegumentary leishmaniasis (ATL) is endemic and presents a wide spectrum of clinical manifestations due, in part, to the circulation of at least seven Leishmaniaspecies. Few reports of Leishmania (Viannia) naiffiinfection suggest that its occurrence is uncommon and the reported cases present a benign clinical course and a good response to treatment. This study aimed to strengthen the clinical and epidemiological importance of L. (V.) naiffiin the Amazon Region (Manaus, state of Amazonas) and to report therapeutic failure in patients infected with this species. Thirty Leishmania spp samples isolated from cutaneous lesions were characterised by multilocus enzyme electrophoresis. As expected, the most common species was Leishmania (V.) guyanensis (20 cases). However, a relevant number ofL. (V.) naiffi patients (8 cases) was observed, thus demonstrating that this species is not uncommon in the region. No patient infected withL. (V.) naiffievolved to spontaneous cure until the start of treatment, which indicated that this species may not have a self-limiting nature. In addition, two of the patients experienced a poor response to antimonial or pentamidine therapy. Thus, either ATL cases due to L. (V.) naifficannot be as uncommon as previously thought or this species is currently expanding in this region.-
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