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[Activity of 22 antibacterials against O1 and O139 serogroup Vibrio cholerae strains isolated from humans within 1927-2005 in various regions of the world].

Analysis of antibioticograms of 390 O1 and O139 serogroup Vibrio cholerae strains isolated from humans within 1927-2005 in various regions of the world showed that the strains of V. cholerae isolated within 1927-1966 were susceptible to 22 antibacterials, the strains isolated within 1938-1993 possessed 1-3 resistance markers and the strains isolated within 1994-2005 had 3-8 resistance markers including resistance to fluoroquinolones. All the strains of O139 serogroup V. cholerae isolated in 1993 and 1994 possessed 3 resistance markers. Studies on albino mice with generalized experimental cholera due to the V. cholerae eltor 1 strain (P-18826, 2005) isolated from a cholera patient, which was highly resistant to nalidixic acid, streptomycin, ampicillin and trimethoprim/sulfamethoxazole and showed cross resistance to fluoroquinolones (ciprofloxacin, ofloxacin, pefloxacin and norfloxacin) and moderate resistance to ceftriaxone and cefotaxime, revealed that the only efficient antibiotics were tetracyclines and aminoglycosides (except streptomycin). The investigation demonstrated an extension of the antibiotic resistance spectra of the epidemically significant strains of the cholera pathogen and the necessity of using antibacterial drugs in strict accordance with the antibioticograms in emergent prophylaxis and therapy of cholera and immediate replacement of the drug by a more active one.