Methicillin resistant Staphylococcus aureus (MRSA) pose an important problem in hospitals, nursing homes, and other health care settings. Serious infections due to these organisms currently necessitate use of non- -lactam antibacterial therapy. For this reason, accurate detection of methicillin or oxacillin resistance among staphylococci is of great importance, consequently several techniques have been applied to this task, including agar plate screening, and disk diffusion tests. There are many lab methods for detection of methicillin resistance in S.aureus. The gold standard, for...

Infantile diarrhea is one of the important illnesses with high morbidity and mortality in children. It is caused by a wide range of microbial agents including viruses, bacteria and parasites. Among the bacterial pathogens, is enteropathogenic E. coli (EPEC). The central mechanism of EPEC pathogenesis is a lesion called 'attaching and effacing' (A/E), which is characterized by adherence of bacteria to the intestinal epithelium. The eae gene, which is located in the 'locus of enterocyte effacement' (LEE) pathogenecity island, and the bfpA gene, located on a plasmid called the EPEC adherence...