Results 71 to 80 of about 63,819 (232)

Malaria Screening and Treatment in Hematopoietic Cell Transplant Donors and Sickle Cell Disease Candidates/Recipients: A Case Series Using Malaria Polymerase Chain Reaction Testing and a Literature Review

open access: yesTransplant Infectious Disease, Volume 28, Issue 1, January/February 2026.
Malaria polymerase chain reaction (PCR) testing is more sensitive than conventional diagnostics. Routine PCR screening of at‐risk asymptomatic hematopoietic cell donors and transplant candidates may prevent unnecessary deferrals or treatment. In our experience, PCR negativity during screening or after treatment supports donor/candidate eligibility ...
Mary M. Czech   +5 more
wiley   +1 more source

PREVALENCE OF OCCULT HEPATITIS B INFECTION IN IRANIAN CANCER PATIENTS BEFORE CHEMOTHERAPY TREATMENT

open access: yesArquivos de Gastroenterologia
Background Occult hepatitis B infection is characterized by negative hepatitis B surface antigen (HBsAg) and also detectable hepatitis B virus (HBV) -DNA, with or without hepatitis B core antibody (anti-HBc).
Mahmud BAGHBANIAN   +5 more
doaj   +1 more source

Occult hepatitis B in Egyptian thalassemic children

open access: yesJournal of Infection in Developing Countries, 2011
Introduction: Thalassemia is hereditary anemia which requires lifelong transfusion as treatment, and hepatitis viral infection is one of the risks of repeated transfusions.
Olfat Shaker   +5 more
doaj   +1 more source

Novel HBsAg markers tightly correlate with occult HBV infection and strongly affect HBsAg detection. [PDF]

open access: yes, 2012
Occult HBV infection (OBI) is a threat for the safety of blood-supply, and has been associated with the onset of HBV-related hepatocellular carcinoma and lymphomagenesis. Nevertheless, genetic markers in HBsAg (particularly in D-genotype, the most common
Andreoni, M   +23 more
core   +1 more source

Unrecognized Transmission Risks of Occult Hepatitis B Virus Infection Among Blood Donors in Central Ethiopia

open access: yesCanadian Journal of Infectious Diseases and Medical Microbiology, Volume 2026, Issue 1, 2026.
Background Occult hepatitis B virus infection (OBI) refers to the detection of HBV DNA in blood or liver tissue in individuals who test negative for hepatitis B surface antigen (HBsAg), excluding the early phase of acute HBV infection. This hidden form of infection represents a substantial but frequently underestimated risk to blood transfusion safety,
Gizachew Beykaso   +4 more
wiley   +1 more source

Detection of hepatitis B virus DNA among accepted blood donors in Nanjing, China

open access: yesVirology Journal, 2010
Background Posttransfusion hepatitis B virus (HBV) infection still occurs although its incidence has been substantially reduced since the introduction of screening of hepatitis B surface antigen (HBsAg) in blood donors.
Liu Yong   +5 more
doaj   +1 more source

Sequence Variations of Full-Length Hepatitis B Virus Genomes in Chinese Patients with HBsAg-Negative Hepatitis B Infection [PDF]

open access: yes, 2014
BACKGROUND: The underlying mechanism of HBsAg-negative hepatitis B virus (HBV) infection is notoriously difficult to elucidate because of the extremely low DNA levels which define the condition. We used a highly efficient amplification method to overcome
Fung, JYY   +8 more
core   +3 more sources

Occult HBV infection may negatively impact on drug survival in patients with rheumatoid arthritis on treatment with a first biologic drug. An appraisal from the Biologic Apulian Registry (BIOPURE).

open access: yesReumatismo, 2019
We performed a retrospective analysis to evaluate the survival on first line biologic drug of rheumatoid arthritis (RA) patients with potential occult HBV infection (pOBI).
G. Carlino   +13 more
semanticscholar   +1 more source

A Prospective Study of Prevalence of Occult HBV Infection and Assessment of Risk Factors for HBV Transmission in Persons with Occult HBV Infection

open access: yesJournal of Pure and Applied Microbiology, 2016
Occult HBV infection (OBI) is an important cause of cryptogenic cirrhosis and HBV reactivation during immunosuppression. There is limited data on OBI. Our aim was to study the prevalence of OBI in coastal Odisha and identify risk factors for HBV transmission in occult HBV infection.
Sudha Kumari Singh   +3 more
openaire   +1 more source

Hepatitis B Virus Genomic Variability & HBV‐Related Disease Outcomes: A Molecular Epidemiology Perspective

open access: yesJournal of Medical Virology, Volume 97, Issue 12, December 2025.
ABSTRACT HBV infection remains a major global health challenge, characterized by diverse genotypes with distinct geographical distributions and clinical outcomes. Comprehensive analysis of HBV genomic variability and its association with disease progression is essential for improving clinical management and public health strategies. This study aimed to
Maria Bousali   +4 more
wiley   +1 more source

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