Iodometric spot test for detection of beta-lactamase in Haemophilus influenzae
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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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متن کاملA comparison of three rapid methods for the detection of beta-lactamase activity in Haemophilus influenzae.
Three methods for rapidly detecting beta-lactamase activity in Haemophilus influenzae are compared. The chromogenic cephalosporin method was found to be the most easily performed and the reagents could be stored for up to three weeks. The phenol red method was simple to perform but the iodometric method was more time consuming. All three tests gave identical results.
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 1981
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.13.1.224-225.1981