Usefulness of the Etest for studying tigecycline susceptibility of non-pigmented rapidly growing mycobacteria

In vitro activity of tigecycline and 10 other antimicrobials against clinical isolates of the genus Corynebacterium

“…Although there may be problems with some specific pathogens, such as mycobacteria [17], it is a useful approach to study the susceptibility of clinical isolates of most bacterial species in clinical laboratories, where a more detailed susceptibility test, such as broth microdilution, is difficult to perform in daily practice.…”

Susceptibility of rapidly growing mycobacteria isolated from Australian cats to ivermectin, moxidectin, ceftiofur and florfenicol

“…The microbroth dilution method is the gold standard for susceptibility testing of RGM, 19 and other susceptibility tests are considered to provide more variable results. 19–22 Microbroth dilution is not without limitations, however, with the precise endpoint often difficult to read. 23 Further attempts to replicate the data of Lim et al 11 with respect to ivermectin, and M tuberculosis by Muhammed Ameen and Drancourt 24 using the agar dilution method, generated different MICs, suggesting that determination of the antimycobacterial activity of avermectins may be affected by the assay method.…”

Probable disseminated Mycobacterium abscessus subspecies bolletii infection in a patient with idiopathic CD4+ T lymphocytopenia: a case report

“…bolletii isolate was resistant to tigecycline despite its susceptibility to minocycline. These differences could be due either to variability in antibiotic susceptibility within M. abscessus species or to the employ of different laboratory methods [22]. The therapeutic choice of azithromycin and minocycline was determined by our patient’s poor compliance and by its ability to cross the hematoencephalic barrier.…”