Literature DB >> 6378964

Simple screening method for beta-lactamase-positive and -negative ampicillin-resistant Haemophilus influenzae isolates.

T R Parr, C H Pai, L E Bryan.   

Abstract

A simple, inexpensive method for screening for beta-lactamase-positive and beta-lactamase-negative ampicillin-resistant Haemophilus influenzae isolates was developed. Disks containing 10 micrograms of cloxacillin yielded no zone of inhibition when placed on chocolate agar plates inoculated with beta-lactamase-positive (16 strains) or ampicillin-resistant (greater than or equal to 1 microgram/ml) beta-lactamase-negative (10 strains) H. influenzae, whereas ampicillin-susceptible (less than or equal to 0.5 microgram/ml; 36 strains) H. influenzae almost always (92%) showed a zone of inhibition.

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Year:  1984        PMID： 6378964      PMCID： PMC271264          DOI： 10.1128/jcm.20.1.131-132.1984

Source DB:  PubMed          Journal:  J Clin Microbiol        ISSN： 0095-1137            Impact factor:   5.948


  12 in total

1.  Chromogenic cephalosporin spot test to detect beta-lactamase in clinically significant bacteria.

Authors:  K Montgomery; L Raymundo; W L Drew
Journal:  J Clin Microbiol       Date:  1979-02       Impact factor: 5.948

2.  The increasing incidence of Ampicillin-resistant Haemophilus influenzae. A cause of otitis media.

Authors:  R Schwartz; W Rodriguez; W Khan; S Ross
Journal:  JAMA       Date:  1978-01-23       Impact factor: 56.272

3.  A rapid method for the differentiation of Haemophilus strains. The porphyrin test;.

Authors:  M Kilian
Journal:  Acta Pathol Microbiol Scand B Microbiol Immunol       Date:  1974-12

4.  Increasing incidence of ampicillin resistance in Hemophilus influenzae.

Authors:  V Syriopoulou; D Scheifele; A L Smith; P M Perry; V Howie
Journal:  J Pediatr       Date:  1978-06       Impact factor: 4.406

5.  The increasing frequency of beta-lactamase-producing Haemophilus influenzae B.

Authors:  J D Nelson
Journal:  JAMA       Date:  1980-07-18       Impact factor: 56.272

6.  Prevalence of ampicillin-resistant strains of Haemophilus influenzae causing systemic infection.

Authors:  S J Lerman; J M Brunken; M Bollinger
Journal:  Antimicrob Agents Chemother       Date:  1980-09       Impact factor: 5.191

7.  Isolation of an ampicillin-resistant, non-beta-lactamase-producing strain of Haemophilus influenzae.

Authors:  S M Markowitz
Journal:  Antimicrob Agents Chemother       Date:  1980-01       Impact factor: 5.191

8.  Ampicillin resistance in Haemophilus influenzae as determined by a rapid test for beta-lactamase production.

Authors:  C Thornsberry; L A Kirven
Journal:  Antimicrob Agents Chemother       Date:  1974-11       Impact factor: 5.191

9.  Novel method for detection of beta-lactamases by using a chromogenic cephalosporin substrate.

Authors:  C H O'Callaghan; A Morris; S M Kirby; A H Shingler
Journal:  Antimicrob Agents Chemother       Date:  1972-04       Impact factor: 5.191

10.  Mechanisms of ampicillin resistance in Haemophilus influenzae from respiratory tract.

Authors:  S M Bell; D Plowman
Journal:  Lancet       Date:  1980-02-09       Impact factor: 79.321
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  3 in total

Review 1.  Haemophilus influenzae: antibiotic susceptibility.

Authors:  C A Needham
Journal:  Clin Microbiol Rev       Date:  1988-04       Impact factor: 26.132

2.  Failure to detect ampicillin-resistant, non-beta-lactamase-producing Haemophilus influenzae by standard disk susceptibility testing.

Authors:  P M Mendelman; D O Chaffin; C Clausen; T L Stull; C Needham; J D Williams; A L Smith
Journal:  Antimicrob Agents Chemother       Date:  1986-08       Impact factor: 5.191

3.  Ampicillin disk diffusion susceptibility testing of Haemophilus influenzae.

Authors:  G V Doern; G S Daum; T A Tubert
Journal:  J Clin Microbiol       Date:  1987-09       Impact factor: 5.948
  3 in total

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