摘要:
The present invention relates to a reaction medium for detecting and/or identifying methicillin-resistant Staphylococcus aureus (MRSA) bacteria, said medium containing a chromogenic substrate, a first antibiotic that belongs to the cephalosporin family, and a second antibiotic that belongs to the aminoside family.
摘要:
The invention relates to a reaction medium for gram-negative bacteria having a beta-lactam antibiotic resistance mechanism. Said reaction medium comprises a marker for the beta-lactam antibiotic resistance mechanism, said marker being cefepime, and an inhibitor of a resistance mechanism other than said beta-lactam antibiotic resistance mechanism.
摘要:
The invention relates to a method for discriminating bacteria that are resistant to carbapenems according to whether or not they develop resistance by membrane imperviousness, said method comprising the following steps: providing a bacteria strain that is resistant to at least one carbapenem; assessing the sensitivity of said bacterial strain with regard to at least one indicator carbapenem, in the absence of polymyxin B nonapeptide (PMBN) as well as in the presence of PMBN in a non-inhibiting concentration; and establishing a prognosis of resistance by membrane imperviousness in the case that the presence of PMBN makes it possible significantly to increase the sensitivity of said bacterial strain with regard to at least one indicator carbapenem used.
摘要:
The present invention relates to a method of detecting and/or specific identification of bacteria producing OXA-048-type carbapenemase in a biological sample, comprising the steps consisting of: a) placing the biological sample likely to contain said bacteria in contact with a reaction medium comprising at least one chromogenic substrate to detect an enzymatic activity, and temocillin at a concentration equal to or greater than 150 mg/L, preferably between 200 and 500 mg/L, b) incubating said sample in the medium to allow the bacteria to grow, and c) detecting the strains corresponding to the OXA-48 carbapenemase producing bacteria. The invention also relates to a culture medium as implemented in step a).
摘要:
The present invention relates to a reaction medium for detecting and/or identifying methicillin-resistant Staphylococcus aureus (MRSA) bacteria, comprising a predetermined combination of two antibiotics, a first antibiotic which belongs to the cephalosporin family and a second antibiotic, said first antibiotic and second antibiotic each being at a sub-inhibitory concentration.