SciELO - Scientific Electronic Library Online

vol.1 issue3Epidemiological indicators of cutaneous leishmaniasis in Alagoas State, Brazil, from 1999 to 2008Methods for assessment of antimalarial activity in the different phases of the Plasmodium life cycle author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




  • Have no cited articlesCited by SciELO

Related links

  • Have no similar articlesSimilars in SciELO


Revista Pan-Amazônica de Saúde

On-line version ISSN 2176-6223


FERREIRA, Louise de Souza Canto et al. Human T-lymphotropic virus seroprevalence in riparian communities in the northeastern region of Pará State, Brazil. Rev Pan-Amaz Saude [online]. 2010, vol.1, n.3, pp.103-108. ISSN 2176-6223.

The human T-lymphotropic virus 1 (HTLV-1) was the first human retrovirus identified, and it is associated with several debilitating diseases. Pará State has the third highest frequency rate of HTLC infections among blood donors in Brazil. Its riparian communities lack educational policies and health care assistance mainly because they inhabit "furos" (Amazonian river channels) and do not have easy access to urban centers. This study aimed to investigate the infection by HTLV in riparian communities of northeastern Pará included in the Luz na Amazônia Program between February 2009 and June 2010. A total of 175 riparian individuals were selected for detection of anti-HTLV-1/2 antibodies: 30 from the São Pedro community (Municipality of Acará), 62 from the Furo do Aurá Community (Municipality of Belém), and 83 from Santa Maria (Municipality of Acará). In the HTLV-reactive individuals we used molecular methods to confirm infection and identify the viral type. HTLV-2 was not found in the study samples. The overall prevalence of HTLV-1 was 1.14% (2/1 75), ranging from zero (0/34) in São Pedro to 1.20% (1/83) in Santa Maria and 1.61 % (1/62) in Furo do Aurá. HTLV-1 was identified in two of 117 (1.35%) families from all three communities. We reported no evidence of familial transmission through testing of samples. HTLV-2 was not found in the samples tested. This study demonstrates the occurrence of HTLV-1 in the riparian communities studied, with frequency rates similar to those of urban populations, which warrants further research and actions to prevent diseases associated with HTLV in these communities.

Keywords : Deltaretrovirus; Cross-Sectional Studies; Seroepidemiologic Studies; Enzyme-Linked Immunosorbent Assay.

        · abstract in Portuguese | Spanish     · text in Portuguese | Spanish     · Spanish ( pdf ) | Portuguese ( pdf )