Citric Acid Catalyst-Assisted Bioactive Glass with Hydrogen Peroxide for Bioactivity and Biodegradability Using Sol-Gel Method.

In this study, carbon-free and completely soluble hydrogen peroxide (HO) was utilized in place of conventional surfactants as a pore-forming agent. Citric acid was also used in low concentration for the hydrolysis reaction. A sol-gel method was used to prepare bioactive glass (BG) specimens of HO-untreated BG, 1M, 2M, and 3M HO-treated BGs.

Bovine tuberculosis in eastern Ethiopia: prevalence, risk factors and its public health importance.

Background: Bovine tuberculosis is among the primary zoonotic disease caused by Mycobacterium bovis which has significant impact on the health of livestock and human. It has been significantly a cause for great economic loss in animal production.

Methodology: A cross-sectional study was conducted from December 2014 to June 2016 on 315 cattle in selected areas of eastern Ethiopia, aiming to estimate the occurrence of bovine tuberculosis using comparative intradermal tuberculin skin test and assess cattle owners' awareness on its public health implication.

Comparative Whole-Genomic Analysis of an Ancient L2 Lineage Reveals a Novel Phylogenetic Clade and Common Genetic Determinants of Hypervirulent Strains.

Development of improved therapeutics against tuberculosis (TB) is hindered by an inadequate understanding of the relationship between disease severity and genetic diversity of its causative agent, . We previously isolated a hypervirulent strain H112 from an HIV-negative patient with an aggressive disease progression from pulmonary TB to tuberculous meningitis-the most severe manifestation of tuberculosis. Human macrophage challenge experiment demonstrated that the strain H112 exhibited significantly better intracellular survivability and induced lower level of TNF-α than the reference virulent strain and other 123 clinical isolates.

Liver Enzymes Abnormalities among Highly Active Antiretroviral Therapy Experienced and HAART Naïve HIV-1 Infected Patients at Debre Tabor Hospital, North West Ethiopia: A Comparative Cross-Sectional Study.

Liver disease has emerged as the most common non-AIDS-related cause of death in HIV patients. However, there is limited data regarding this condition including our setting in Ethiopia. Hence, liver enzyme abnormalities among highly active antiretroviral therapy (HAART) experienced and HAART naïve patients were assessed in this study.

Barbers' knowledge and practice about occupational biological hazards was low in Gondar town, North West Ethiopia.

Background: Several health hazards including communicable diseases and skin conditions are associated with Barbers' profession to which their visitors are exposed. Thus, knowledge and practice of Barbers would play a vital part in prevention and control of these health hazards. So, the aim of this study is to assess knowledge and practice, and associated factors among barbers about biological hazards associated with their profession in Gondar town, North West Ethiopia.