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BMC Nephrol. 2015 May 28;16:73. doi: 10.1186/s12882-015-0069-6.

Streptococcus uberis and Staphylococcus aureus forefoot and blood stream co-infection in a haemodialysis patient: a case report.

Author information

1
Department of Nephrology and Dialysis, Academic Teaching Hospital Feldkirch, Carinagasse 47, A-6800, Feldkirch, Austria. Christine.valentiny@vlkh.net.
2
Institute for Pathology, Academic Teaching Hospital Feldkirch, Feldkirch, Austria. harald.dirschmid@lkhf.at.
3
Department of Nephrology and Dialysis, Academic Teaching Hospital Feldkirch, Carinagasse 47, A-6800, Feldkirch, Austria. Karl.lhotta@lkhf.at.

Abstract

BACKGROUND:

Streptococcus uberis, the most frequent cause of mastitis in lactating cows, is considered non-pathogenic for humans. Only a few case reports have described human infections with this microorganism, which is notoriously difficult to identify.

CASE PRESENTATION:

We report the case of a 75-year-old male haemodialysis patient, who developed a severe foot infection with osteomyelitis and bacteraemia. Both Streptococcus uberis and Staphylococcus aureus were identified in wound secretion and blood samples using mass spectrometry. The presence of Streptococcus uberis was confirmed by superoxide dismutase A sequencing. The patient recovered after amputation of the forefoot and antibiotic treatment with ampicillin/sulbactam. He had probably acquired the infection while walking barefoot on cattle pasture land.

CONCLUSION:

This is the first case report of a human infection with Streptococcus uberis with identification of the microorganism using modern molecular technology. We propose that Staphylococcus aureus co-infection was a prerequisite for deep wound and bloodstream infection with Streptococcus uberis.

PMID:
26018417
PMCID:
PMC4446856
DOI:
10.1186/s12882-015-0069-6
[Indexed for MEDLINE]
Free PMC Article

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