Among the following assertions about penicillinase which one is NOT correct?
A. Penicillinase is the main resistance mechanism to penicillin in Streptococcus pneumoniae.
B. Penicillinase is the main resistance mechanism to penicillin in Staphylococcus aureus.
C. Penicillinase is able to hydrolyze a cephalosporin.
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Among the following resistance mechanisms, which one concerns vancomycin?
A. Mutation of the target.
B. Efflux
C. Inactivation of the antibiotic
Select the right answer. Antimicrobials used as growth promoters (GPs):
Are not banned in Europe.
B. Are still authorized in Europe but under certain circumstances
C. Are banned in Europe but still authorized in many countries worldwide.
Select the right answer.The Extended-Spectrum β-lactamase (ESBL)-producing E. coli isolates:
A. Rarely contaminate chicken meat at retail shops
B. Are specific to the animal sector
C. Were selected in animals by the use of Extended-Spectrum Cephalosporins (ESCs).
What is the percentage of wrongly ATB treated asymptomatic bacteriuria? (except pregnancy or before urological surgery)
A. <20%
B. ≈ 50%
C. > 70%
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