Treatment is with ampicillin if the isolate does not produce beta-lactamase.

It is resistant to some forms of extended-spectrum beta-lactamase.

But there are different antibiotics that can block that enzyme, called beta-lactamase.

The Company will market its beta-lactamase to antibiotics manufacturers to improve quality control, to the diagnostics industry, and to research organizations.

Beta-lactamase provides antibiotic resistance by breaking the antibiotics' structure.

However, other agents should be used for the therapy of bacteremia caused by beta-lactamase producing bacteria.

Since the beta-lactamase blocks the penicillin, the bacteria are not harmed and can continue to grow freely.

The mechanism of resistance for these strains is believed to be hyper-production of beta-lactamase.

Twenty strains were tested for presence of beta-lactamase by the indirect fluorescent antibody technique.

As with the other cephalosporins, although as a second-generation variety, it is less susceptible to beta-lactamase.

He was particularly interested in how some bacteria come to produce an enzyme, beta-lactamase, that breaks down penicillin and similar drugs, making them ineffective.

TEM-1 is the most commonly encountered beta-lactamase in Gram-negative bacteria.

Varying degrees of inhibition of the beta-lactamase with clavulanic acid have been reported.

The metallo beta-lactamase protein fold is adapted to associate with membrane phospholipids.

The Company estimates that its beta-lactamase has a market potential of up to EUR 5 million.

Beta-lactamase which confers ampicillin resistance to bacterial hosts.

Like beta-lactamase.

However, Klebsiella possesses a chromosomal class A beta-lactamase giving it resistance to ampicillin.

The ampicillin resistance gene is penicillin beta-lactamase.

With the rise of beta-lactamase producing bacteria, ampicillin and the other penicillin-derivatives became ineffective to these resistant organisms.

Cefquinome is resistant to beta-lactamase.

Plasmid encoded beta-lactamase is responsible for the emergence of resistant strains of Enterobacteriaceae.

Individuals who fail penicillin therapy may respond to treatment effective against beta-lactamase producing bacteria such as clindamycin or amoxicillin-clavulanate.

These organisms are resistant to penicillin by virtue of production of beta-lactamase, and by other unknown factors.

It is oxidase- and catalase-positive, and produces beta-lactamase.