extended-spectrum beta-lactamase
C2CEFR level
98/100Rarity: very rare
TechnicalRegister
An enzyme produced by some Gram-negative bacteria that hydrolyses most penicillins and cephalosporins, conferring resistance.
An extended-spectrum beta-lactamase producer requires a carbapenem rather than ceftriaxone.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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