22:T46f,A multiplex PCR is described which detects capsular types K1, K2, K5, K54 and K57, which are those most associated with invasive disease or pathogenicity, a further capsular type (K20), two putative virulence factors (rmpA and wcaG) and the 16S-23S internal transcribed spacer unit of Klebsiella pneumoniae, facilitating identification of this organism. wcaG encodes capsular fucose production and was associated with capsular types K1 and K54, but was also found in strains of other capsular types; 18 of the 543 isolates screened were PCR-positive for this gene. An eight-locus variable number tandem repeat (VNTR) scheme was designed, which provided discrimination at a level similar to that afforded by PFGE among a panel of 36 isolates representing 29 PFGE types. All isolates tested of the virulent K1 clone of CC23, associated with pyogenic liver abscesses, shared the same VNTR profile, which may be helpful in identifying this clone; such isolates were also PCR-positive for allS. These methods provide a rapid means of characterizing and typing isolates of this important agent of community-acquired and nosocomial infection.23:T4c5,Septic metastatic endophthalmitis fromKlebsiella pneumoniae liver abscess, first reported in seven cases treated at the Veterans General Hospital, Taipei, Taiwan, between 1981 and 1985, was seen in six similar cases at the same hospital in the subsequent 2 years. We conducted a retrospective search for factors that might be associated with these complications of pyogenic liver abscess. A total of 23 cases with septic metastatic lesions from pyogenic liver abscess were found between 1981 and 1987, and 164 cases of pyogenic liver abscess without septic metastatic lesions were identified as a comparison group.Klebsiella pneumoniaeliver abscess, bacteremia, and the underlying diabetes mellitus were significantly more common in the study group than in the comparison group. Of the 23 patients with septic metastatic lesions, there were 14 cases (60.8%) of endophthalmitis or uveitis, 10 cases (43.4%) of pulmonary abscess and/or emboli, six cases (26.0%) of brain abscess and/or purulent meningitis, five cases (21.7%) of bacteriuria and/or prostate abscess, two cases (8.6%) of osteomyelitis and/or pyogenic arthritis, and one case (4.3%) of psoas abscess. (Arch Intern Med. 1991;151:1557-1559)24:T4c5,Septic metastatic endophthalmitis fromKlebsiella pneumoniae liver abscess, first reported in seven cases treated at the Veterans General Hospital, Taipei, Taiwan, between 1981 and 1985, was seen in six similar cases at the same hospital in the subsequent 2 years. We conducted a retrospective search for factors that might be associated with these complications of pyogenic liver abscess. A total of 23 cases with septic metastatic lesions from pyogenic liver abscess were found between 1981 and 1987, and 164 cases of pyogenic liver abscess without septic metastatic lesions were identified as a comparison group.Klebsiella pneumoniaeliver abscess, bacteremia, and the underlying diabetes mellitus were significantly more common in the study group than in the comparison group. Of the 23 patients with septic metastatic lesions, there were 14 cases (60.8%) of endophthalmitis or uveitis, 10 cases (43.4%) of pulmonary abscess and/or emboli, six cases (26.0%) of brain abscess and/or purulent meningitis, five cases (21.7%) of bacteriuria and/or prostate abscess, two cases (8.6%) of osteomyelitis and/or pyogenic arthritis, and one case (4.3%) of psoas abscess. (Arch Intern Med. 1991;151:1557-1559)

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