An Improved Medium for Colistin Susceptibility Testing

Colistin susceptibility testing: time for a review.

respectively, relative to the S. maltophilia strain IAM 1566 protein) (Figure 1). S. maltophilia is a Gram-negative bacterium found in a variety of environments, including soil, water and plants, and is therefore a potential reservoir of the MBL gene. Similar to POM-1 and L1 MBLs, the ability of the PAM-1 enzyme to hydrolyse carbapenems might be relatively low; consequently, the PAM-1-positive ...

Colistin Susceptibility Testing Using the MicroScan® Colistin Well

Totally synthetic medium for susceptibility testing.

The results of disk diffusion and plate dilution susceptibility testing of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Proteus mirabilis on media gelled with agar-agar or with a synthetic hydrogel were compared. Synthetic hydrogel can be combined with a totally defined synthetic amino acid medium to yield a reproducible, totally defined, synthetic solid medium without t...

Improved method for azole antifungal susceptibility testing.

A reproducible method is described for the determination of the MICs of ketoconazole, miconazole, fluconazole, and itraconazole with sharp endpoints when employed with either yeasts or molds. A semisolid medium is used with controlled pH and standardized inoculum. The time of reading results is a critical factor in the conduct of this test. The medium is simple to prepare and has a relatively l...

HYPOTHESIS TESTING FOR AN EXCHANGEABLE NORMAL DISTRIBUTION

Consider an exchangeable normal vector with parameters ????2, and ?. On the basis of a vector observation some tests about these parameters are found and their properties are discussed. A simulation study for these tests and a few nonparametric tests are presented. Some advantages and disadvantages of these tests are discussed and a few applications are given.