OBJECTIVE The goal was to determine the prevalence of acute hepatitis A virus (HAV) infection and immunity among internationally adopted children. METHODS Children seen at the International Adoption Center between September 25, 2006, and September 30, 2008, and were screened for HAV within 4 months after their arrival in the United States were eligible for the study. The age- and country-spec...

background the occult hepatitis b infection (obi) is defined as the presence of hepatitis b virus (hbv) dna in the sera or in the liver biopsy and the absence of hepatitis b surface antigen (hbsag) by serological test. objectives the current study aimed to evaluate the occult hbv infection by polymerase chain reaction (pcr) and determine hbv genotyping among the patients with abnormal alanine t...

conclusions we confirm that in amol city and surrounding areas, the prevalence of true hcv infection is 0.05%, which is lower than that previously reported from iran. results the mean age of participants was 42.70 ± 17.10 years. of these participants, 57.2% (n = 3483) were male. anti-hcv antibody was positive in 12 individuals from which five were riba positive. three of these subjects were pcr...

Background: Hepatitis B virus is known as one of the most common pathogen in the world. 350 million people are chronic carrier in the world and more than 3/4 hepatitis B virus infection are in Middle East and Africa. Various statistics of this infection has been reported in Iran. Since vaccination plan of 1989 born not only in Zabol but through Iran, will be performed and there is no exact info...

materials and methods a case-control study was designed on 91 cases with spontaneous hcv infection clearance and 259 patients with persistent hcv infection as the control group. the rs12979860 snp was assessed as the most common ifnl polymorphism by pcr-rflp method. results distribution of rs12979860 cc genotype in the spontaneous clearance group was around two folds of its distribution in chro...

Background: Hepatitis C virus (HCV) is a blood-borne virus. It is a major global public health problem and can cause both acute and chronic hepatitis. The aim of this study was to report the epidemiological features of HCV infection and risk factors based on the data from Azar Cohort, East Azerbaijan province, Iran. Methods: The population of this study comprised the people in the age range of...

Introduction: Hepatitis B is a disease caused by the hepatitis B virus (HBV), which is transmitted through percutaneous (i.e., puncture through the skin) or mucosal (i.e., direct contact with mucous membranes) exposure to infectious blood or body fluids. HBV can cause chronic infection, resulting in cirrhosis of the liver, liver cancer, liver failure, and death. Persons with chronic infection a...

conclusions this study found that gbv-c infection has a high frequency among injecting drug users with hiv/hcv coinfection and hcv mono-infection in yunnan, china. in patients with chronic hepatitis c and hiv coinfection, gbv-c rna was associated with significantly lower alt and ast levels, suggesting a beneficial effect of gbv-c infection on chronic hepatitis c. results gbv-c rna was identifie...

conclusions in our study, only hbv genotype d was found among all the positive hbsag and occult hbv infection. moreover, high prevalence (40.7%) of occult hbv infection was determined among patients suffered from cryptogenic cirrhosis. results eleven (40.7%) out of 27 hbv cryptogenic cirrhosis and all 11 hbsag-positive patients were positive for hbv dna. the seroprevalences of hepatitis b virus...