نتایج جستجو برای: occult infection
تعداد نتایج: 464882 فیلتر نتایج به سال:
background: the north eastern region in india is endemic for canine heartworm disease but in clinics accurate diagnosis is some times difficult. the aim of the present study was to determine the prevalence of occult infections for heartworm disease in canine in two geographical regions of north eastern india. methods : a total of 782 numbers of three categories of dogs namely, working dogs of m...
Abstract Background and objectives: Hepatitis B virus infection is a major health problem in worldwide. The prevalence of Occult and chronic HBV in hemodialysis patients is higher than standard in developing countries. People with occult HBV are negative for HBV surface antigen (HBsAg) but positive for HBV-DNA. We aimed to evaluate occult hepatitis B infection in patients under hemodialysis in ...
results oci has been reported in several high-risk groups, especially in hemodialysis patients and subjects with cryptogenic liver disease. furthermore, some studies have proposed a specific immune response for oci in comparison with chronic hepatitis c (chc). conclusions with a clinical history of approximately 11 years, occult hcv infection can be considered an occult type of chc. evidences s...
background occult hepatitis b infected (obi) patients cannot eradicate hepatitis b virus (hbv)-dna from their liver and peripheral blood, completely. objectives the main aim of this study was to investigate the rate of hla-a2 expression on peripheral blood mononuclear cells (pbmcs) of patients with obi. materials and methods in this experimental study, intensity of hla-a2 was measured on the pb...
ABSTRACT Background: Hepatitis B virus (HBV) infection in patients who lack detectable hepatitis B surface antigen (HBsAg) is called occult hepatitis B infection. Such infections have been frequently identified in patients with chronic hepatitis Cliver disease, but their prevalence is not known. Methods: 207 patients with chronic hepatitis C who were HCV -RNA and antiHCV positive were stu...
Introduction: In recent years with introduction of better screening tests, the risk of infection with transfusion-transmitted viruses has been reduced remarkably, although obtaining a zero-risk blood supply still remains international blood transfusion services goal. The routine test for detection of HBV infected blood samples is examination of HBsAg with ELISA method but in occult HBV infectio...
background: in patients who are hepatitis b virus (hbv) dna-positive, but hbv surface antigen (hbsag) -negative, the infection is referred to as occult hepatitis b infection (obi). occult hbv infection is harmful when other liver diseases are present, and can aggravate liver damage in in patients with chronic liver diseases. in human immunodeficiency virus (hiv) infection the suppression of vir...
in the recent issue of middle east journal of digestive diseases, we read with great interest the article by bahari et al. 1 , “significance of response to hepatitits b vaccine in subjects with isolated antibody to hepatitis b core antigen”. we wanted to specify some important matters related to the article.
Background: Blood transfusion plays a great role in public health and the blood safety still has remained a main concern. HBV has been considered as one of the most prevalent blood borne infections. It is estimated that chronic HBV affects 350-400 million people worldwide. Comprehensive knowledge about HBV has high importance in Iran due to high number of blood dependent patients. Material ...
objective: occult hepatitis b infection is a form of hepatitis in which despite of absence of detectable hbsag, hbv-dna is present in peripheral blood of patients. this clinical form of b hepatitis creates some problems for the iranian blood transfusion services. therefore, the aim of this study was the evaluation of status of occult hepatitis b infection in the rafsanjanese blood donors. mate...
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