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Combinations of aminoglycosides plus ampicillin usually are necessary for the satisfactory management of serious Enterococcus faecalis sepsis. A study in a South London hospital demonstrated that 7% of all E. faecalis, and 30% of those from blood cultures, were highly gentamicin resistant. Addition of gentamicin confers no benefit to the treatment of these organisms with ampicillin. We looked at the susceptibility pattern of these organisms in vitro and concluded that ampicillin plus ciprofloxacin offered the best available combination.

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Six strains ofRhodopseudomonas capsulataweretestedfortheirabilityfor anaerobic light-dependent hydrogen gas production from acetate in different incubation temperatures and light intensities.Certain strains show a higher efficiency of acetate conversion to H at higher temperatures and higher light intensities, others ontheotherhan 8 are insensitive or even show the opposite effect.