An Unusual Case of Moraxella osleonsis Bacteremia in an Immunocompetent Patient With SARS-CoV-2 Infection

Veerabathini, Bala C; Manthani, Kaushik; Gandhi, Sandeep A.

doi:10.7759/cureus.10154

Cited by 1 publication

(1 citation statement)

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“…Moraxella species apart from M. catarrhalis are extremely uncommon pathogens in human hosts, but case reports have described Moraxella species as unusual causes of invasive infections in humans, including septic arthritis, endocarditis, bacteremia, and meningitis (1)(2)(3)(4)(6)(7)(8)(9)(10)(11)(12)(13)(14). Risk factors for invasive disease secondary to Moraxella species may relate to comorbidities, immunocompromising conditions, injection drug use, and inherited and acquired complement deficiencies (1,4,8,15).…”

Section: Discussionmentioning

confidence: 99%

Bacteremia and polyarticular septic arthritis secondary toMoraxella bovisin a pregnant patient with HIV who injects drugs

Danger

Ripplinger

Blondeau

et al. 2022

Official Journal of the Association of Medical Microbiology and

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CASE PRESENTATION: We report a rare case of Moraxella bovis bacteremia and polyarticular septic arthritis in a 37-year-old pregnant woman with HIV who injects drugs. Two sets of blood cultures obtained 5 hours apart were positive for gram-negative bacilli, and purulent fluid was present intra-operatively from both her left knee and her right third MCP joints. DIAGNOSIS: Organism identification using ligation sequencing confirmed both her blood culture and synovial tissue isolates as M. bovis. Her infection was initially treated with third-generation cephalosporins and later changed to moxifloxacin because of a drug reaction; although she defervesced clinically with improvement in her C-reactive protein levels, she died most likely as a result of a non-traumatic fat embolism after an elective Caesarean delivery. DISCUSSION: In contrast to Moraxella catarrhalis, other Moraxella species are rarely associated with disease in human hosts. M. bovis is classically associated with infectious bovine keratoconjunctivitis in cattle; interestingly, our patient denied significant animal exposure. To the authors’ knowledge, this is the first case describing infection secondary to M. bovis in an adult host.

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