ttv was first isolated from the serum of a japanese patient with post transfusion hepatitis of unknown etiology in 1977. ttv has been visualized by electron microscopy and was found to be an unenveloped, small, spherical particle with a diameter of 30-32 nm, and is a member of family related to circovridae family. the exact role of ttv in the pathogenesis of liver disease is yet to be establish...

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...

results liver function tests in the healthy blood donors were within the normal range. the incidence rates of senv-d and senv-h in the 184 total blood donors were 10 (5.4%) (95% confidence interval (ci): 2.1% - 9.0%) and 32 (17.4%) cases (95% ci: 12.0% - 23.0%), respectively. senv-h/d co-infection occurred in 2 (1.1%) patients. the sera of 8/184 (4.3%) were positive for anti-hbc antibody but ne...

introduction: transfusion-transmitted infections (tti) continue to be a major challenge for blood transfusion organizations in the world and multi- transfused patients (mtps) are at higher risk of infection. htlv-1 is a retrovirus that easily transmitted via blood cell products. the aim of this study is determine the seroprevalence of htlv-1 in major thalassemic patients from kermanshah provinc...

background: malaria is the most important transfusion-transmitted infection (tti) in worldwide after viral hepatitis and human immunodeficiency virus (hiv) infection. the main objective of the present study was to review and evaluate the transmission of malaria via blood transfusion in iran. methods : a literature search was done without time limitation in the electronic databases as follows: p...

Epstein-Barr virus (EBV)-related herpesvirus (Si-IIA-EBV) was serially transmitted for 3 passages from rabbit to rabbit of the opposite sex by blood transfusion, which subsequently induced virus-associated rabbit lymphomas. The virus could be transmitted by transfusion with 15-20 ml of whole blood (7/7) or irradiated blood (1/6) from the EBV-related virus-infected rabbits, but there was no tran...

Background: Unsafe transfusion practices put patients at high risk of transfusion transmissible infections. We aimed to evaluate the prevalence of transfusion transmissible infections (including Human Immunodeficiency Virus [HIV] 1 and 2, Hepatitis B Virus [HBV], Hepatitis C Virus (HCV) and syphilis) during a period of 18 months among blood donors in the Blood Bank of Lady Hardinge Medical Coll...