Escherichia coli and Staphylococcus aureus most common source of infection

Escherichia coli and Staphylococcus aureus are a serious cause of a variety of communityand hospital-acquired infections. E. coli is one of the most common nosocomial pathogens that cause urinary tract infections (UTIs) and enterocolitis. S. aureus is also an etiological infection agent responsible for significant levels of morbidity and mortality. According to Broad Institute. (2010), Escherichia coli accounts for 17.3% of clinical infections requiring hospitalization and is the second most common source of infection behind Staphylococcus aureus (18.8%). In recent years, the emergence of resistant Staphylococcus aureus and resistant Escherichia coli strains to many antibiotics has been observed worldwide. These have become a major concern in global public health invigorating the need for new antimicrobial compounds. This review described these two bacteria, their taxonomies, morphology and biochemical characteristics, habitat and growth characteristics, the caused infections, their treatment and resistances to antibiotics.