This type of medium is both selective and differential. The MSA will select for organisms such as Staphylococcus species which can live in areas of high salt concentration (plate on the left in the ...

Bacteria adapt readily to many different nutritional environments by altering gene expression in accordance with the availability of particular nutrients. Each metabolic gene or operon is regulated by ...

BUTTIAUX and his colleagues1 have questioned the reliability of the urea test for the identification of members of the genus Proteus in routine investigations of Enterobacteriaceae. They found many ...

dCenter for Global Child Health Research, Department of Pediatrics, Division of Pulmonary and Critical Care Medicine, Oregon Health and Science University and the Portland VA Medical Center, Portland, ...

Objective Proton pump inhibitors (PPIs) are drugs used to suppress gastric acid production and treat GI disorders such as peptic ulcers and gastro-oesophageal reflux. They have been considered low ...

Quality control measures include using known positive and negative control organisms (ATCC reference strains with documented expected results) alongside the test organism each time a new batch/lot of ...