Abstract
Fecal specimens were collected on 22 different Nebraska ranches and at the Department of Veterinary Science from young calves and pigs with neonatal diarrhea. Enterobacteriaceae isolated from these fecal specimens were screened for resistance to tetracycline, streptomycin, sulfamethizole, kanamycin, chloramphenicol, colistin, nitrofurantoin, and nalidixic acid. Of the 92 strains studied, 57 were resistant to one or more of these antimicrobial agents. Resistant strains were obtained from all herds involved in the study. The two most common resistance patterns were tetracycline streptomycin sulfamethizole (22 of 57) and tetracycline (13 of 57). None of the strains were resistant to chloramphenicol, colistin, nitrofurantoin, or nalidixic acid. The 57 resistant strains were studied to determine whether the resistance was transferable. Forty-three of the 57 resistant strains could transfer part or all of their resistance pattern to a drug-sensitive recipient. The 43 R+ strains were obtained from 17 of the 23 herds studied. Considerable variation was observed between different R+ strains in the frequency of transfer of resistance to a particular drug. In addition, variation in the frequency of transfer of different resistance determinants in individual R+ strains was noted.
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Selected References
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- Anderson E. S. The ecology of transferable drug resistance in the enterobacteria. Annu Rev Microbiol. 1968;22:131–180. doi: 10.1146/annurev.mi.22.100168.001023. [DOI] [PubMed] [Google Scholar]
- DATTA N. Transmissible drug resistance in an epidemic strain of Salmonella typhimurium. J Hyg (Lond) 1962 Sep;60:301–310. doi: 10.1017/s0022172400020416. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DAVIS B. D., MINGIOLI E. S. Mutants of Escherichia coli requiring methionine or vitamin B12. J Bacteriol. 1950 Jul;60(1):17–28. doi: 10.1128/jb.60.1.17-28.1950. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gill F. A., Hook E. W. Salmonella strains with transferable antimicrobial resistance. JAMA. 1966 Dec 19;198(12):1267–1269. [PubMed] [Google Scholar]
- Kabins S. A., Cohen S. Resistance-transfer factor in Enterobacteriaceae. N Engl J Med. 1966 Aug 4;275(5):248–252. doi: 10.1056/NEJM196608042750504. [DOI] [PubMed] [Google Scholar]
- Reed N. D., Sieckmann D. G., Georgi C. E. Transfer of infectious drug resistance in microbially defined mice. J Bacteriol. 1969 Oct;100(1):22–26. doi: 10.1128/jb.100.1.22-26.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Salzman T. C., Klemm L. Transfer of antibiotic resistance (R factor) in the mouse intestine. Proc Soc Exp Biol Med. 1968 Jun;128(2):392–394. doi: 10.3181/00379727-128-33020. [DOI] [PubMed] [Google Scholar]
- Sieckmann D. G., Reed N. D., Georgi C. E. Transferable drug resistance among Enterobacteriaceae isolated from human urinary tract infections. Appl Microbiol. 1969 May;17(5):701–706. doi: 10.1128/am.17.5.701-706.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Smith D. H., Armour S. E. Transferable R factors in enteric bacteria causing infection of the genitourinary tract. Lancet. 1966 Jul 2;2(7453):15–18. doi: 10.1016/s0140-6736(66)91745-4. [DOI] [PubMed] [Google Scholar]
- Smith D. H. Salmonella with transferable drug resistance. N Engl J Med. 1966 Sep 22;275(12):625–630. doi: 10.1056/NEJM196609222751201. [DOI] [PubMed] [Google Scholar]
- Smith H. W. Anti-microbial drugs in animal feeds. Nature. 1968 May 25;218(5143):728–731. doi: 10.1038/218728a0. [DOI] [PubMed] [Google Scholar]
- Smith H. W. Transfer of antibiotic resistance from animal and human strains of Escherichia coli to resident E. coli in the alimentary tract of man. Lancet. 1969 Jun 14;1(7607):1174–1176. doi: 10.1016/s0140-6736(69)92164-3. [DOI] [PubMed] [Google Scholar]
- WATANABE T. Infective heredity of multiple drug resistance in bacteria. Bacteriol Rev. 1963 Mar;27:87–115. doi: 10.1128/br.27.1.87-115.1963. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Walton J. R., Fulton F. Segregation during transfer of infectious drug resistance in Enterobacteriaceae. Nature. 1967 Jul 8;215(5097):179–180. doi: 10.1038/215179a0. [DOI] [PubMed] [Google Scholar]
