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Efficacy of doxycycline and ciprofloxacin against experimental Yersinia pestis infection. 1998

P Russell, and S M Eley, and M Green, and A J Stagg, and R R Taylor, and M Nelson, and R J Beedham, and D L Bell, and D Rogers, and D Whittington, and R W Titball
CBD Porton Down, Salisbury, Wiltshire, UK.

The efficacies of ciprofloxacin and doxycycline prophylaxis and therapy were assessed against experimental pneumonic plague infections induced by two strains of Yersinia pestis in a mouse model. When exposed to an aerosol of Y. pestis strain GB, containing 8.39 x 10(5) +/- 4.17 x 10(4) cfu, the retained dose was 7.3 x 10(3) +/- 2.3 x 10(3) cfu. When exposed to an aerosol of Y. pestis strain CO-92, containing 1.86 x 10(5) +/- 7.4 x 10(3) cfu, the retained dose was 3.4 x 10(4) +/- 2.6 x 10(3) cfu. Both strains resulted in a respiratory and systemic infection closely resembling human pneumonic plague. Ciprofloxacin prophylaxis and therapy was successful against both strains for up to 24 h after challenge, but not after 48 h. Both doxycycline prophylaxis and therapy regimens were ineffective against both strains, although strain CO-92 was more susceptible in vitro to doxycycline than strain GB and supra-MIC levels were achieved in the serum and lungs of the animal.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008826 Microbial Sensitivity Tests Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses). Bacterial Sensitivity Tests,Drug Sensitivity Assay, Microbial,Minimum Inhibitory Concentration,Antibacterial Susceptibility Breakpoint Determination,Antibiogram,Antimicrobial Susceptibility Breakpoint Determination,Bacterial Sensitivity Test,Breakpoint Determination, Antibacterial Susceptibility,Breakpoint Determination, Antimicrobial Susceptibility,Fungal Drug Sensitivity Tests,Fungus Drug Sensitivity Tests,Sensitivity Test, Bacterial,Sensitivity Tests, Bacterial,Test, Bacterial Sensitivity,Tests, Bacterial Sensitivity,Viral Drug Sensitivity Tests,Virus Drug Sensitivity Tests,Antibiograms,Concentration, Minimum Inhibitory,Concentrations, Minimum Inhibitory,Inhibitory Concentration, Minimum,Inhibitory Concentrations, Minimum,Microbial Sensitivity Test,Minimum Inhibitory Concentrations,Sensitivity Test, Microbial,Sensitivity Tests, Microbial,Test, Microbial Sensitivity,Tests, Microbial Sensitivity
D010930 Plague An acute infectious disease caused by YERSINIA PESTIS that affects humans, wild rodents, and their ectoparasites. This condition persists due to its firm entrenchment in sylvatic rodent-flea ecosystems throughout the world. Bubonic plague is the most common form. Bubonic Plague,Meningeal Plague,Pneumonic Plague,Pulmonic Plague,Black Death,Black Plague,Septicemic Plague,Yersinia pestis Infection
D002939 Ciprofloxacin A broad-spectrum antimicrobial carboxyfluoroquinoline. Bay-09867,Ciprinol,Cipro,Ciprofloxacin Hydrochloride,Ciprofloxacin Hydrochloride Anhydrous,Ciprofloxacin Monohydrochloride Monohydrate,Anhydrous, Ciprofloxacin Hydrochloride,Bay 09867,Bay09867,Hydrochloride Anhydrous, Ciprofloxacin,Hydrochloride, Ciprofloxacin,Monohydrate, Ciprofloxacin Monohydrochloride,Monohydrochloride Monohydrate, Ciprofloxacin
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004318 Doxycycline A synthetic tetracycline derivative with similar antimicrobial activity. 2-Naphthacenecarboxamide, 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-, (4S-(4alpha,4aalpha,5alpha,5aalpha,6alpha,12aalpha))-,Alpha-6-Deoxyoxytetracycline,Atridox,BMY-28689,BU-3839T,Doryx,Doxycycline Calcium,Doxycycline Calcium Salt (1:2),Doxycycline Hemiethanolate,Doxycycline Hyclate,Doxycycline Monohydrate,Doxycycline Monohydrochloride, 6-epimer,Doxycycline Monohydrochloride, Dihydrate,Doxycycline Phosphate (1:1),Doxycycline-Chinoin,Hydramycin,Oracea,Periostat,Vibra-Tabs,Vibramycin,Vibramycin Novum,Vibravenos,Alpha 6 Deoxyoxytetracycline,BMY 28689,BMY28689,BU 3839T,BU3839T,Doxycycline Chinoin,Doxycycline Monohydrochloride, 6 epimer,Vibra Tabs
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015010 Yersinia pestis The etiologic agent of PLAGUE in man, rats, ground squirrels, and other rodents. Bacillus pestis,Bacterium pestis,Pasteurella pestis,Pestisella pestis,Yersinia pseudotuberculosis subsp. pestis
D016896 Treatment Outcome Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series. Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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