Frequency of active human herpesvirus-6, -7 (HHV-6, HHV-7) and parvovirus B19 (B19) infection/coinfection and its association with clinical course of ME/CFS was evaluated. 108 ME/CFS patients and 90 practically healthy persons were enrolled in the study. Viral genomic sequences were detected by PCR, virus-specific antibodies and cytokine levels-by ELISA, HHV-6 variants-by restriction analysis. ...

visceral leishmanisasis is endemic and zoonotic in several foci in ardabil province, north west of iran. the main objective of this study was to determine the natural promastigote infection of sand-flies in active seasons, during 1991-1995. sand-flies were caught by sticky traps, aspirator and cdc light traps from indoors and outdoors. altogether 2659 sandflies were dissected and identified. th...

BACKGROUND Clinical guidelines support a noninvasive Helicobacter pylori "test-and-treat" strategy for individuals with uncomplicated dyspepsia. However, consensus is lacking regarding the preferred noninvasive testing method. OBJECTIVE To use decision analytic modeling to estimate the clinical and economic outcomes associated with noninvasive tests designed to detect either H pylori antibody...

background there is a high risk of tuberculosis (tb) infection among injecting drug users (idus). objectives this study aimed to determine the frequency of latent and active tb infection among idus. materials and methods in a cross-sectional study between 2008 and 2009, idus referred to the methadone maintenance treatment (mmt) centers in hamedan-iran, undergone tuberculin skin test (ppd; purif...

We have studied the nature of Epstein-Barr virus (EBV) infection in 33 patients with chronic active EBV infection. The study population included 14 patients with fatal chronic EBV infection and 19 patients with nonfatal chronic EBV infection, as well as 18 patients with acute EBV-induced infectious mononucleosis and 10 healthy controls. EBV DNA was measured in serum or plasma samples from the p...

OBJECTIVE To assess the incidence, risk factors, and outcome of active cytomegalovirus (CMV) infection in nonimmunosuppressed intensive care unit (ICU) patients. DESIGN Prospective epidemiologic study. SETTING A medical ICU in a university hospital. PATIENTS Two hundred forty-two nonimmunosuppressed ICU patients mechanically ventilated for >or=2 days. INTERVENTIONS Routine pp65 antigene...