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  • Title: Investigation of beta-lactam antibiotic-induced vancomycin-resistant MRSA (BIVR).
    Author: Hanaki H, Yamaguchi Y, Yanagisawa C, Uehara K, Matsui H, Yamaguchi Y, Hososaka Y, Barada K, Sakai F, Itabashi Y, Ikeda S, Atsuda K, Tanaka H, Inamatsu T, Nagayama A, Sunakawa K.
    Journal: J Infect Chemother; 2005 Apr; 11(2):104-6. PubMed ID: 15856381.
    Abstract:
    We could not detect hetero-vancomycin-intermediate resistant Staphylococcus aureus (hetero-VISA), according to the definition of hetero-VISA, from the clinical isolates of 140 methicillin-resistant S. aureus (MRSA) strains. However, 15 beta-lactam antibiotic-induced vancomycin-resistant MRSA (BIVR) strains were detected from the same strains. We screened 1882 MRSA clinical isolates obtained in 2002 from 21 institutes throughout Japan. The detection rate of blood-isolated BIVR was 12.6% (19/151), and that of nonblood-isolated BIVR was 4.9% (85/1731; P < 0.001; chi2 test). Uridine-diphosphate-N-acetylmuramyl-L: -alanyl-D: -isoglutamyl-L: -lysine, used as the peptidoglycan material of S. aureus, showed the same results as beta-lactam antibiotics in BIVR.
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