EnterohemorrhagicEscherichia coliHybrid Pathotype O80:H2 as a New Therapeutic Challenge

Enterohemorrhagic Escherichia coli Hybrid Pathotype O80:H2 as a New Therapeutic Challenge

We describe the epidemiology, clinical features, and molecular characterization of enterohemorrhagic Escherichia coli (EHEC) infections caused by the singular hybrid pathotype O80:H2, and we examine the influence of antibiotics on Shiga toxin production. In France, during 2005-2014, a total of 54 patients were infected with EHEC O80:H2; 91% had hemolytic uremic syndrome. Two patients had invasi...

Biofilm Infections: a New Therapeutic Challenge

Biofilms are multicellular communities of bacteria. The ability to form biofilm is a universal attribute of bacteria and as bacteria can form biofilm in medical, industrial and environmental settings, it impacts human lives in many different ways. Bacteria undergo profound physiologic, morphologic and genetic changes as the transit from planktonic (free swimming, non-biofilm) form to surface at...

Coronavirus as a New Challenge for Infection Control in Dentistry: A Literature Review

 Modes of transmission of the COVID-19 virus are still unclear. The virus could spread through direct routes, including aerosols and saliva, and indirect transmission through contaminated surfaces. Dental practitioners produce airborne infectious particles especially when using rotary instruments during treatment. Oral fluids, blood, and oral mucosa are also sources of infection, so dentists ar...

Disseminated Cutaneous Rhinosporidiosis: a Tumor like Lesion with Therapeutic Challenge

Rhinosporidiosis is a granulomatous disorder caused by Rhinosporidium seeberi, an aquatic parasite. It spreads through contaminated water and soil. It frequently involves the nasal cavity and nasopharynx. Disseminated or systemic lesions are rare. A 56 year old man presented with multiple tumor like lesions all over the body in our cancer institute in April 2012. Fine needle aspiration cyto...

Self-Assessment as a New Challenge in Iranian Context: Its Strengths and Weaknesses