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  • Title: [Drug sensitivity and beta-lactamase producibility of various types of bacteria clinically isolated during the period from December 1999 to February 2000].
    Author: Hashimoto K, Kinosita C, Yoshinaga H, Sonda Y, Itoyama T, Oyamada K, Kajimura K, Kondou M, Sagawa K, Ouno T, Kawamoto K, Souda K, Hara K, Kakihara M, Tanaka T, Ryutou M, Shichiji A, Nakashima K, Ishibashi K, Tabira R, Yamamoto S, Nishida M, Tsutsumi Y.
    Journal: Jpn J Antibiot; 2002 Sep; 55 Suppl A():86-94. PubMed ID: 12599532.
    Abstract:
    beta-Lactamase activity and drug sensitivity were measured in 744 strains from 8 species of bacteria isolated at medical institutions in Chikugo District of Fukuoka Prefecture during the period from December 1999 to February 2000. Nitrocefin test revealed that beta-lactamase was positive in 48% of S. aureus, 7% of H. influenzae, and 92% of M. catarrhalis, and acidometry revealed that penicillinase/cephalosporinase were positive in 13%/14% of E. coli, 22%/8% of K. pneumoniae, 47%/97% of E. cloacae, 3%/65% of S. marcescens, and 10%/36% of P. aeruginosa. Based on the assessment of the MIC values of various types of antibacterial drugs for beta-lactamase-producing strains, there were 11 strains (1 strain of K. pneumonia, 6 strains of E. cloacae, and 4 strains of P. aeruginosa) of class-B beta-lactamase-producing bacteria out of a total of 496 strains of Enterobacteriaceae and Pseudomonas aeruginosa. The results of PCR analysis suggested that 1 strain of K. pneumonia, 1 strain of E. cloacae, and 4 strains of P. aeruginosa produced metallo-beta-lactamase. There was no strain (E. coli and K. pneumoniae) of ESBL-producing bacteria. BLNAR strains, on the other hand, were found in 9% (9/100) of H. influenzae.
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