penicillin-resistant bacteria

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Noun1.penicillin-resistant bacteria - bacteria that are unaffected by penicillin
bacteria, bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
References in periodicals archive ?
Bacteroides fragilis - Penicillin-resistant bacteria responsible for many abdominal infections
However, certain of the staphylococci, called coagulase-negative strains, are notoriously resistant to many antibiotics, including methicillin, a semisynthetic penicillin developed to treat penicillin-resistant bacteria.

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