Antibiotic resistance of gram-negative bacteria in rivers, United States.

Antibiotic resistance of gram-negative bacteria in rivers, United States.
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DOI:
10.3201/eid0807.010264
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发表时间:
2002-07
影响因子:
11.8
通讯作者:
Morgan M
Morgan M
中科院分区:
医学2区
文献类型:
--
作者:
Ash RJ;Mauck B;Morgan M

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Bacteria with intrinsic resistance to antibiotics are found in nature. Such organisms may acquire additional resistance genes from bacteria introduced into soil or water, and the resident bacteria may be the reservoir or source of widespread resistant organisms found in many environments. We isolated antibiotic-resistant bacteria in freshwater samples from 16 U.S. rivers at 22 sites and measured the prevalence of organisms resistant to β-lactam and non β-lactam antibiotics. Over 40% of the bacteria resistant to more than one antibiotic had at least one plasmid. Ampicillin resistance genes, as well as other resistance traits, were identified in 70% of the plasmids. The most common resistant organisms belonged to the following genera: Acinetobacter, Alcaligenes, Citrobacter, Enterobacter, Pseudomonas, and Serratia.
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