ArticleMemorias do Instituto Oswaldo Cruz2013
Occult hepatitis B virus infection among injecting drug users in the Central-West Region of Brazil.
Article in Memorias do Instituto Oswaldo Cruz, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed.
- First Detection of Hepatitis B Virus Subgenotype A5, and Characterization of Occult Infection and Hepatocellular Carcinoma-Related Mutations in Latin American and African Immigrants in Brazil.International journal of molecular sciences · 2024Article
- Reconstruction of the spatial and temporal dynamics of hepatitis B virus genotype D in the Americas.PloS one · 2019Article
- Seroprevalence of Hepatitis B Infection and Associated Risk Factors among Drug Users in Drop-in Centers of Isfahan, Iran.International journal of preventive medicine · 2018Article
- Risk factors for hepatitis B transmission in South Brazil.Memorias do Instituto Oswaldo Cruz · 2017Article
- Detection and molecular characterisation of a diagnosis escape variant associated with occult hepatitis B virus in Brazil.Memorias do Instituto Oswaldo Cruz · 2017Article
- Nationwide overview of the distribution of hepatitis B virus genotypes in Brazil: a 1000-sample multicentre study.The Journal of general virology · 2017Article
- Population-Based Multicentric Survey of Hepatitis B Infection and Risk Factors in the North, South, and Southeast Regions of Brazil, 10-20 Years After the Beginning of Vaccination.The American journal of tropical medicine and hygiene · 2015Article
- The hidden epidemic of occult hepatitis B and C among injection drug users (IDUs): A call for action.International journal of health sciencesArticle
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The prevalence of occult hepatitis B virus (HBV) infection was investigated in 149 hepatitis B surface antigen (HBsAg) negative injecting drug users (IDUs) in the Central-West Region of Brazil. Of these individuals, 19 were positive for HBV DNA, resulting in an occult HBV infection prevalence of 12.7% (19/149); six of these 19 individuals had anti-HBV core and/or anti-HBV surface antibodies and 13 were negative for HBV markers. All IDUs with occult hepatitis B reported sexual and/or parenteral risk behaviours. All HBV DNA-positive samples were successfully genotyped. Genotype D was the most common (17/19), followed by genotype A (2/19). These findings reveal a high prevalence of occult HBV infection and the predominance of genotype D among IDUs in Brazil's Central-West Region.
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Registered trials
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