Combinations of vancomycin and betalactams
are synergistic against staphylococci with reduced susceptibilities to vancomycin.
Diagnosis of immediate reactions to betalactam
Comparative activities of betalactam
antibiotics and quinolones for invasive Streptococcus pneumoniae isolates.
If they have recently been exposed to a particular class of antibiotics, continued or repeated use of that class of antibiotics is not recommended or in the case of a betalactam
, an agent in that same class with a broader spectrum should be used.
However, this tendency in co-occurring keywords seemed to be more toward pharmaceutical aspects in relation to the microbes and infections they caused (spectrum betalactam
, chloramphenicol therapy, third-generation cephalosporins), and more pathologically oriented in non-co-occurring keywords (serotype distribution, strains, antimicrobial susceptibility, plasmids).
Bacteremic pneumococcal infections in immunocompromised patients without AIDS: the impact of betalactam
resistance on mortality.
Aztreonam is a monobactam antibiotic that contains a betalactam
pneumoniae (PNSP), studies have demonstrated that at the individual level, previous use of betalactam
antibiotics such as penicillin is an important risk factor (8-10).
The failure of betalactam
antibiotics to penetrate intracellular sites and kill nonmultiplying dormant bacteria may explain the frequent relapses of melioidosis after treatment with these drugs (25).
Our results (not shown) indicate that In-t2 serves as a vehicle for the oxa-1 gene, extending betalactam
resistance to ureidopenicillins, and of the aadA1 gene, conferring resistance to streptomycin and spectinomycin.
This therapeutic approach is contrary to current guidelines, which recommend using betalactam
antibiotics as first-choice therapy and reserving macrolides only for patients allergic to betalactams
The researchers found snippets of genetic material in bacteria from river sediments downstream of the treatment plant that confetted resistance not only to ciprofloxacin, a fluoroquinolone, but also to betalactams
, aminoglycosides, sulfonamides, and other classes of antibiotics.