Septicaemia caused by Myroides spp.: a case report

Abstract

Introduction: Myroides spp. are aerobic, yellow-pigmented, non-fermentative Gram-negative rods considered to be low-grade opportunistic pathogens. However, their intrinsic resistance to commonly used antibiotics necessitates prompt identification and evaluation. Case presentation: Here, we report a case of septicaemia caused by Myroides sp. A 36-year-old pregnant female was admitted to the intensive care unit at week 18 of gestation with a diagnosis of hydatidiform mole with acute renal failure and anaemia. Blood culture under aerobic conditions showed growth of round, smooth, convex, yellow-pigmented colonies on blood agar but which failed to grow on MacConkey agar, and the organism was identified as Myroides sp. Susceptibility testing showed that it was susceptible only to piperacillin+tazobactam and, following treatment, the patient recovered. Conclusion: Myroides spp. has, until now, been regarded as an opportunistic pathogen and a rare cause of serious disease in immunocompromised subjects. However, it may cause serious disease, even in immunocompetent hosts, and its intrinsic resistance warrants appropriate testing and timely intervention.

Myroides spp. Causing Urinary Tract Infection in an Immunocompromised Patient: A Case Report

“…Later, in 1929 Stutzer and Kwaschnina, renamed it as Flavobacterium odoratus (Elantamilan et al, 2015). In 1996on the basis of extensive polyphasic taxonomic analysis it was determined that the organism formerly classified as Flavobacterium odoratum consisted of a heterogeneous group comprising of Myroides odoratus and Myroides odoratimimus (Vancanneyt et al, 1996).…”

“…Genus Myroides are not part of normal human microflora, rather they are encountered in the wet environments, sea water, soil and sewage treatment plants (Manish Rajan et al, 2017). Over the last few years this organism has been reported to be associated with various life threatening infections including recurrent cellulitis, post-operative wound infections and severe septicaemia (Elantamilan et al, 2015). They are mostly low grade opportunistic pathogens, infecting immunocompromised hosts such as those suffering from liver cirrhosis, end stage renal disease and chronic obstructive pulmonary disease on long term corticosteroid therapy (Beharrysingh, 2017).…”

“…has been published in India till date. A case of septicaemia from Shillong (Elantamilan et al, 2015), case of urosepsis from Pune (Manish Ranjan et al, 2017) and a case of pericardial effusion from Uttarakhand (Prateek et al, 2015) due to Myroides spp. have been reported in the past.…”

Urosepsis due to Multi Drug Resistant Myroides odoratimimus: A Case Report

“…are ubiquitous, they are frequently encountered in wet environments, sea water, soil and sewage treatment plants. Over past decade, these Gram negative bacteria are increasingly being implicated in various life threatening infections in health care setting (Elantamilan et al, 2015, Endicott-Yazdani et al, 2015. These infections include skin and soft tissue infections, urinary tract infection, bacteraemia and sepsis (Benedetti et al, 2011, Beharrysingh 2017.…”

Sepsis caused by Myroides spp. associated with bronchopneumonia and coinfection with Pseudomonas aeruginosa and Proteus vulgaris: A case report and review of Myroides spp. infections

“…The patient had multiple admissions, which explains antibiotic resistance of Pseudomonas aeruginosa and Proteus vulgaris isolates. However, isolated Myroides strain was sensitive to carbapenems, fluoroquinolones, minocycline and cefepime, compared to other cases cited in the literature, that generally recorded resistance to β-lactams through chromosomally encoded the subclass B1 of metallo-β-lactamases [16] or variable susceptibility to aminoglycosides or quinolones [8,12,[17][18][19][20]. Common susceptibility of isolated strains to meropenem allowed monotherapy in doses appropriate to renal impairment, recommending at discharge another 7 d of ciprofloxacin.…”