Detection of ò-lactamase in Haemophilus influenzae Isolates by Double Disk Synergy Test
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چکیده
منابع مشابه
Iodometric spot test for detection of beta-lactamase in Haemophilus influenzae.
A simple iodometric spot test for detecting beta-lactamase activity in Haemophilus influenzae was compared with the capillary procedure for detecting beta-lactamase and the Bauer-Kirby disk susceptibility procedure. Isolates were classified similarly by all three procedures.
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Strains of Haemophilus influenzae type b sporadically isolated from clinical specimens are ampicillin resistant due to production of a beta-lactamase. This enzyme which inactivates ampicillin and penicillin G is not produced by ampicillin-susceptible strains. Various characteristics of beta-lactamase production and ampicillin resistance of three H. influenzae type b isolates were investigated. ...
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A modified 1-min iodometric paper strip test for penicillinase activity was developed for detection of beta-lactamase-producing isolates of Haemophilus influenzae and Neisseria gonorrhoeae. The test is simple to perform and uses reagent-impregnated strips that may be stored for 1 year or more prior to use.
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We questioned whether the apparent rarity of ampicillin-resistant, non-beta-lactamase-producing (NBLP) Haemophilus influenzae was due to failure of detection. We identified ampicillin-resistant and ampicillin-susceptible H. influenzae by the agar dilution technique, using 10(5)- and 10(3)-CFU inocula. We compared the disk susceptibility of 18 ampicillin-resistant NBLP strains, 13 ampicillin-res...
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A rapid capillary tube method was used to demonstrate beta-lactamase production by ampicillin-resistant strains of Haemophilus influenzae.
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ژورنال
عنوان ژورنال: Journal of Microbial & Biochemical Technology
سال: 2015
ISSN: 1948-5948
DOI: 10.4172/1948-5948.1000248