Drug resistance and conjugative R plasmids in Escherichia coli strains isolated from migratory waterfowl

Journal of Wildlife Diseases
M TsubokuraT Sanekata

Abstract

We evaluated drug resistance and R plasmids of 554 stains of Escherichia coli isolated from feces of migratory watefowl, including whistling swans (Cygnus columbianus), pintails (Anas acuta) and black-tailed gulls (Larus crassirostris) collected from the San-in District, Japan, between each November and March, 1983 to 1984, 1984 to 1985, and 1985 to 1986. Seven antimicrobial agents were tested: dihydrostreptomycin (DSM), kanamycin, spectinomycin, ampicillin (ABPC), oxytetracycline (OTC), chloramphenicol, and sulfadimethoxine (SDMX). Many strains were resistant to several drugs; in particular, all strains were resistant to SDMX. Both multiple drug resistant strains and drug resistance patterns occurred most frequently in strains isolated from whistling swans, followed by black-tailed gulls, and pintails, respectively. Of 233 strains, 128 (55%) carried transmissible R plasmids. The drugs with the largest number of resistance patterns observed were, in descending order, OTC, DSM, ABPC, and SDXM.

Citations

Apr 7, 2011·The Journal of Veterinary Medical Science·Ichiro NakamuraYasuhiro Kawamoto
Nov 15, 2011·The Journal of Veterinary Medical Science·Noriyuki KitadaiKozo Takase
Apr 5, 2014·Upsala Journal of Medical Sciences·Jonas Bonnedahl, Josef D Järhult
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Aug 17, 2016·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Carlos Alexandre Rey MatiasSalvatore Siciliano
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