Assertion: antibiotic | /r/HasAspect | high efficacy
Facets:
value: against many bacterial species
type: OTHER
value: against strains
type: OTHER
Source sentences:
text: Antibiotics such as penicillin and erythromycin, which used to have a high efficacy against many bacterial species and strains, have become less effective, due to the increased resistance of many bacterial strains.