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Case Reports
. 2022 Jan 14;14(1):82-87.
doi: 10.3390/idr14010009.

Mobiluncus  curtisii Bacteremia: Case Study and Literature Review

Cade Arries  1 , Patricia Ferrieri  1
Affiliations
Case Reports

Mobiluncus  curtisii Bacteremia: Case Study and Literature Review

Cade Arries et al. Infect Dis Rep. .

Abstract

Background: There are few reports of bacteremia caused by Mobiluncus curtisii in the literature. We present a review of the literature in addition to a case study.

Method: We describe the case of an 82-year-old patient who underwent gastrointestinal surgery and subsequently presented with dehydration, nausea, and hyperkalemia secondary to diarrhea. Further clinical work included blood cultures, and the patient was started empirically on piperacillin/tazobactam.

Results: After five days, the blood culture bottle showed growth of a gram-variable, curved rod-shaped organism. After culture under anaerobic conditions on sheep blood agar, the organism was identified as Mobiluncus curtisii by MALDI-TOF mass spectrometry and enzymatic technology. A review of the literature reveals five additional cases of Mobiluncus curtisii bacteremia.

Conclusions: This is the sixth case in the literature describing Mobiluncus species bacteremia. This organism is rarely identified in blood culture and is most often thought of in the context of bacterial vaginosis. However, the reported cases of bacteremia show gastrointestinal symptoms and presumed gastrointestinal source of infection. The pathogenesis of infection of this organism requires further investigation.

Keywords: Mobiluncus curtisii; anaerobic; bacteremia; blood culture; microbiology.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
(a) Image of the sheep blood agar plate grown in anaerobic conditions showing colorless, translucent, smooth, convex colonies after 5 days of incubation. (b) Image of Gram’s stain at 1000× magnification, with oil immersion. The organism was curved and rod-shaped, gram-variable, and a predominant gram-negative staining pattern was displayed here.
See this image and copyright information in PMC

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