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. 1991 Aug;29(8):1589-92.
doi: 10.1128/jcm.29.8.1589-1592.1991.

Clinical and microbiological observations on CDC group DF-3, a gram-negative coccobacillus

V J Gill  1 , L B Travis, D Y Williams
Affiliations

Clinical and microbiological observations on CDC group DF-3, a gram-negative coccobacillus

V J Gill et al. J Clin Microbiol. 1991 Aug.

Abstract

Sequential stool cultures submitted for routine culture were screened for the presence of CDC group DF-3. Of 690 specimens, 11 (1.6%) yielded moderate to heavy growth of DF-3. Information on the 11 patients from whom these specimens were obtained showed that 4 had a history of prolonged diarrheal disease that resolved after specific therapy to eradicate DF-3, while for the other 7 patients no clear role could be established. Microbiological characterization of the stool isolates and 10 CDC strains of DF-3 suggested the presence of two subtypes within the group. Antibiotic susceptibility studies showed DF-3 to be relatively resistant to a wide variety of antibiotics.

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