Publications by authors named "Samira Riabi"

Coxsackieviruses B (CV B) are known as the most common viral cause of human heart infections. Cardiac inflammations contribute to sudden unexpected death (SUD) significantly. The diagnosis remains difficult with the traditional diagnostic tests and must be substantially improved.

View Article and Find Full Text PDF

Sudden infant death (SID) is an unresolved problem of high relevance and previous studies have indicated a role of viral heart infections. The diagnosis remains difficult in clinical practice using routine diagnostic tests and must be substantially improved. A prospective study based on post-mortem samples from SID victims whose heart disease was not clinically recognized was conducted for 4 years in a Tunisian University Hospital.

View Article and Find Full Text PDF

Coxsackieviruses B (CV‑B) are known as the most common viral cause of human heart infections. The aim of the present study was to assess the potential role of CV‑B in the etiology of infectious heart disease in hospitalized patients. The present study is based on blood, pericardial fluid and heart biopsies from 102 patients and 100 control subjects.

View Article and Find Full Text PDF

Background: Decay Accelerating Factor (DAF) and Coxsackievirus-Adenovirus Receptor (CAR) have been identified as cellular receptors for Coxsackie B viruses (CV-B). The aim of this study is to elucidate the different binding properties of CV-B serotypes and to find out if there are any amino acid changes that could be associated to the different phenotypes.Twenty clinical CV-B isolates were tested on CaCo-2 cell line using anti-DAF (BRIC216) and anti-CAR (RmcB) antibodies.

View Article and Find Full Text PDF

Background: A West Nile (WN) fever epidemic occurred in the region of Monastir, Tunisia, between August and October 2003.

Aim Of The Study: We attempt to describe the epidemiology, clinical presentation, and outcome of patients with confirmed West Nile virus (WNV) infection.

Methods: Three groups of specimens were prepared.

View Article and Find Full Text PDF

Background: Viral myocarditis is a major cause of sudden unexpected death in children and young adults. Until recently, coxsackievirus B3 (CVB3) has been the most commonly implicated virus in myocarditis. At present, no standard diagnosis is generally accepted due to the insensitivity of traditional diagnostic tests.

View Article and Find Full Text PDF

Virus-induced myocarditis is a common disease even in infants and young adults, but the diagnosis can be difficult according to the Dallas-criteria, which have been criticized as being too unreliable. The diagnosis has been substantially improved due to immunohistochemistry (IHC) for the detection of the VP1-capsid-protein of enterovirus as well as reversetranscriptase-polymerase chain reaction assays (RT-PCR) for viral genome detection. We report an unusual case of myocarditis in a young adult athlete whose heart disease was not clinically recognized and, thus, caused his sudden unexpected death (SUD).

View Article and Find Full Text PDF

Background: Wastewater frequently has been contaminated by enteric viruses, which can cause gastroenteritis, hepatitis, and other viral diseases. Since current water treatments do not ensure their complete removal and they become contaminants of the water environment.

Aim: In order to monitor and assess the prevalence and the seasonal incidence of enteric viruses contaminating wastewater, a total of 93 samples were collected from the stations of Sayada-Lamta-Bouhjar and El Frina.

View Article and Find Full Text PDF

This study aimed to evaluate the prevalence of anti-West Nile virus (WNV) IgG among two populations of Tunisian blood donors living in areas where human outbreaks of WNV have occurred. Cohorts A (Monastir) and B (Mahdia) included 742 and 102 blood donors respectively. Sera were tested by IgG ELISA test and results were confirmed by PRNT test.

View Article and Find Full Text PDF