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 studied f...

background torque teno virus (ttv) belongs to the circoviridae family and was separated from japanese patients with elevated levels of serum alanine transferase for the first time. following this, extensive studies have been carried out around the world. objectives the present study was designed to investigate and determine the frequency of ttv genotypes in patients with chronic hepatitis b and...

The incidence of cholangiocarcinoma, an aggressive malignancy with poor prognosis, is increasing. Hepatitis B and C have been well established as predisposing factors for this malignancy. availability efficacy treatment hepatitis infection has led to a substantial reduction in viral hepatitis-related cholangiocarcinoma mortality. Despite treatment, the potential developing continues exist patie...

background and aims: viral hepatitis is a global health problem with a high mortality rate. recently, a new flavi-like virus, provisionally named hepatitis g virus (hgv), has been described. hgv does not induce an immune response that is consistently detectable by using recombinant proteins from prokaryotic expression, therefore studies have been conducted by using polymerase chain reaction (pc...

background and aims: recently, a novel dna virus was isolated from the serum of a patient with post-transfusion non a-g hepatitis and named tt virus. the aim of this study was to determine the prevalence tt virus among cirrhotic patients due to hepatitis b & c in infection ahwaz. methods: the prevalence of ttv infection was studied in 41 patients with liver cirrhosis. ttv dna was detected by se...

viral hepatitis is one of five infectional factors cause early death in all over the world. every day at least one million people die because of viral hepatitis. six hepatitis viruses have been known until now. they are a, b, c, d, e, g, and it is probable that at least two other kinds i.e. f, and h, will be known soon. only hepatitis b is a dna virus, and the others are rna viruses. all viruse...

objective: chronic infection of hepatitis b and hepatitis c are considered as the most important infectious diseases, which lead to drastic consequences such as liver dysfunction. depression is a psychiatric disorder which is concomitantly present in these patients, and decreases the patients’ quality of life. it may lead to suicide, homicide or intentional transmission of infectious to others....