Seventy-four Shiga toxin-producing Escherichia coli (STEC) isolates belonging to the serotype O91:H21 were isolated from 1,643 asymptomatic human carriers in a STEC outbreak at Gwangju in Korea. Although the isolates did not cause any symptoms, all of them produced Shiga toxins 1 (Stx1) and 2 (Stx2). In order to determine why these strains cause no symptoms, we explored the differences in virul...

Studies have reported human bocavirus (HBoV) in children with respiratory tract infections (RTIs), but only occasionally in adults. We searched for HBoV DNA in nasopharyngeal aspirates (NPAs) from adults with exacerbations of chronic bronchitis or pneumonia, from children hospitalized for acute RTIs, and from asymptomatic children during the winter of 2002-2003 in Canada. HBoV was detected in N...

Although microembolus monitoring has been widely used for ischemic cerebrovascular disease, the clinical significance of microembolic signal (MES) in asymptomatic middle cerebral artery (MCA) stenosis remains unclear. We aim to investigate the frequency of MES and the value of MES in predicting ischemic stroke secondary to asymptomatic MCA stenosis. From June 2011 to December 2012, microembolus...

PURPOSE To determine the natural history of asymptomatic, clinical rhegmatogenous retinal detachment. DESIGN Single observer, prospective, consecutive, observational case series. METHODS Consecutive patients were included who were referred to the author's clinical practice with rhegmatogenous retinal detachment extending greater than two disk-diameters posterior to the equator. Patients who...

Endometrial calcification along with ossification is an uncommon clinical entity. Most of the cases are asymptomatic or present with secondary infertility. Endometrial ossification associated with repeated abortions has been reported very infrequently. Here we report a case of endometrial calcification with ossification  due to retained fetal bony tissue in a 38 year old symptomatic female havi...

We assessed the prevalence and natural history of malarial parasitemia by use of microscopy and polymerase chain reaction (PCR) in 314 asymptomatic children in Kampala, Uganda. The prevalence of asymptomatic parasitemia was 17% by microscopy and 47% by PCR. Children with parasitemia identified by microscopy had a 5-fold higher rate of subsequent symptomatic malaria, compared with children witho...

The aim of this study is to find dialysis relevant sonographic parameters of painful shoulder of the symptomatic dialyzed patients comparing them with parameters in asymptomatic dialyzed patients and healthy volunteers. Significant difference in all metric parameters (thickness of supraspinatus tendon, diameter of biceps tendon sheet and capsula-bone distance) were noticed between all groups an...