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Use of molecular techniques to characterize microorganisms during the past 20 years has increased the numbers of anaerobic species and made identification using only phenotypic methods difficult. Some of the newly described species have been recovered from blood cultures, showing pathogenic potential, and posing a challenge for identification.
Alistipes (previously Bacteroides) are strictly anaerobic gram-negative rods that resemble the Bacteroides fragilis group in that most species are bile-resistant and indole-positive; however, they are only weakly saccharolytic and most species produce light brown pigment only on laked rabbit blood agar. In this retrospective study, we re-identified 18 organisms previously identified phenotypically...
We studied the serum bactericidal activity (SBA) of moxifloxacin and levofloxacin against common pathogens associated with complicated intra-abdominal infections. Ten healthy volunteers received a single dose of moxifloxacin (400mg) and levofloxacin (750mg) and serum samples were collected at 2, 4, 8, 12, and 24h after the dose of each drug. Bactericidal titers in serum over time were determined for...
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