Now showing items 1-10 of 14

    • Absence of nonprimate hepacivirus-related genomes in blood donors seroreactive for hepatitis C virus displaying indeterminate blot patterns 

      Levi, J. E.; Cabral, S. P. N.; Nishiya, A. [UNIFESP]; Ferreira, S. [UNIFESP]; Romano, C. M.; Polite, M. B. C.; Pereira, R. A. A.; Mota, M. A.; Kutner, J. M. (Wiley-Blackwell, 2014-11-01)
      Despite intensive search, no primate homologue to the Hepatitis C Virus (HCV) has ever been found. the search for a zoonotic origin for HCV has been renewed recently when a virus, now known as non-primate hepacivirus (NPHV), ...
    • Anti-HCV reactive blood donors: clinical and epidemiological factors associated with false-reactive results 

      Narciso-Schiavon, Janaina L. [UNIFESP]; Schiavon, Leonardo L. [UNIFESP]; Carvalho-Filho, Roberto J. [UNIFESP]; Cardoso, Jaqueline R. [UNIFESP]; Freire, Fernanda C. F. [UNIFESP]; Sampaio, Juliana R. [UNIFESP]; Bordin, Jose O. [UNIFESP]; Soares, Maria Angelica [UNIFESP]; Silva, Antonio Eduardo B. [UNIFESP]; Ferraz, Maria Lucia G. [UNIFESP] (Lippincott Williams & Wilkins, 2008-11-01)
      Background in certain clinical settings, false-reactive anti-hepatitis C virus (HCV) results are rare because the majority of persons being tested have evidence of liver disease and the specificity of the screening assays ...
    • Anti-hepatitis C virus-positive blood donors: are women any different? 

      Narciso-Schiavon, J. L. [UNIFESP]; Schiavon, L. L. [UNIFESP]; Carvalho-Filho, R. J. [UNIFESP]; Freire, F. C. F. [UNIFESP]; Cardoso, J. R. [UNIFESP]; Bordin, J. O. [UNIFESP]; Silva, A. E. B. [UNIFESP]; Ferraz, M. L. G. [UNIFESP] (Wiley-Blackwell, 2008-06-01)
      We sought to assess clinical, epidemiological, biochemical, serological and histological characteristics of anti-hepatitis C virus (HCV)-positive female blood donors and compare them with men. As women are frequently the ...
    • The application of latent class analysis for diagnostic test validation of chronic Trypanosoma cruzi infection in blood donors 

      Langhi Junior, Dante M.; Bordin, Jose Orlando [UNIFESP]; Castelo Filho, Adauto [UNIFESP]; Walter, Stephen D.; Moraes-souza, Hélio; Stumpf, Robert J. (Brazilian Society of Infectious Diseases, 2002-08-01)
      The main strategy to prevent transfusion-associated Chagas' disease is the identification of T. Cruzi-infected blood donors by serological screening tests, however there is no perfect serological gold standard. We evaluated ...
    • Gene frequencies of the HPA-15 (Gov) platelet alloantigen system in Brazilians 

      Cardone, JDB; Chiba, A. K.; Boturao-Neto, E.; Vieira, JPB; Bordin, J. O. (Blackwell Publishing Ltd, 2004-12-01)
      The HPA-15 (Gov) alloantigen is a biallelic co-dominant system on human platelets, and its allele HPA-15a and HPA-15b differ by an A-->C single nucleotide polymorphism at nucleotide 2108 of the coding sequence resulting ...
    • High prevalence of hepatitis E virus antibodies among blood donors in Southern Brazil 

      Passos-Castilho, Ana Maria [UNIFESP]; de Sena, Anne [UNIFESP]; Geraldo, Alexandre; Spada, Celso; Granato, Celso F. H. [UNIFESP] (Wiley-Blackwell, 2016)
      Brazil has been classified as moderately endemic for hepatitis E virus (HEV) infection. However, data on the seroprevalence of HEV in this region are limited. This study evaluated the prevalence of past or present HEV ...
    • High prevalence of hepatitis E virus antibodies among blood donors in Southern Brazil 

      Passos-Castilho, Ana Maria [UNIFESP]; de Sena, Anne [UNIFESP]; Geraldo, Alexandre; Spada, Celso; Granato, Celso F. H. [UNIFESP] (Wiley-Blackwell, 2016)
      Brazil has been classified as moderately endemic for hepatitis E virus (HEV) infection. However, data on the seroprevalence of HEV in this region are limited. This study evaluated the prevalence of past or present HEV ...
    • HIV Genotypes and Primary Drug Resistance Among HIV-Seropositive Blood Donors in Brazil: Role of Infected Blood Donors as Sentinel Populations for Molecular Surveillance of HIV 

      Alencar, Cecilia Salete [UNIFESP]; Sabino, Ester Cerdeira [UNIFESP]; Carvalho, Silvia M. F.; Leao, Silvana C.; Carneiro-Proietti, Anna B.; Capuani, Ligia; Oliveira, Claudia L.; Carrick, Danielle; Birch, Rebecca J.; Goncalez, Thelma T.; Keating, Sheila; Swanson, Priscilla A.; Hackett, John; Busch, Michael P.; NHLBI Retrovirus Epidemiology; Int Component (Lippincott Williams & Wilkins, 2013-07-01)
      Background: There are few surveillance studies analyzing genotypes or primary (transmitted) drug resistance in HIV-infected blood donors in Brazil. The aim of this study was to characterize patterns of HIV genotypes and ...
    • Paracoccidioides brasiliensis-reactive antibodies in Brazilian blood donors 

      Botteon, FAG; Camargo, Zoilo Pires [UNIFESP]; Benard, G.; Coelho, R. F.; Chamone, DAF; Itano, E. N. (B I O S Scientific Publishers Ltd, 2002-08-01)
      In a survey for primary paracoccidioidomycosis (PCM) infection (and not the clinical disease), two groups of blood donors were analyzed. One study group was drawn from donors living in a rural area where PCM is endemic, ...
    • Platelet alloantigen frequencies in Amazon Indians and Brazilian blood donors 

      Chiba, Akemi Kuroda [UNIFESP]; Bordin, J. O.; Kuwano, S. T.; Figueiredo, M. S.; Carvalho, K. I.; Vieira, JPB; Kerbauy, J. (Blackwell Science Ltd, 2000-09-01)
      The frequencies of human platelet-specific alloantigens (HPAs) vary between different ethnic groups, and genotyping using DNA techniques has been preferred over immunophenotyping methods for population studies. Using a ...