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Year : 2010  |  Volume : 20  |  Issue : 4  |  Page : 203-204

Chryseobacterium meningosepticum bacteremia in diabetic nephropathy patient on hemodialysis

Department of Microbiology and Nephrology, Father Muller Medical College, Mangalore, India

Date of Web Publication1-Dec-2010

Correspondence Address:
M Dias
Associate professor, Department of Microbiology, Fr. Muller Medical College, Mangalore
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-4065.73460

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The Chryseobacterium species are inhabitants of soil and water. In the hospital environment, they exist in water systems and wet surfaces. We report here a case of Chryseobacterium meningosepticum bacteremia in a diabetic nephropathy patient on hemodialysis. He was successfully treated with Vancomycin and ceftazidime for three weeks with good clinical outcome. This is the first case reported in dialysis patients from India.

Keywords: Chryseobacterium meningosepticum , bacteremia, hemodialysis

How to cite this article:
Dias M, Prashant K, Pai R, Scaria B. Chryseobacterium meningosepticum bacteremia in diabetic nephropathy patient on hemodialysis. Indian J Nephrol 2010;20:203-4

How to cite this URL:
Dias M, Prashant K, Pai R, Scaria B. Chryseobacterium meningosepticum bacteremia in diabetic nephropathy patient on hemodialysis. Indian J Nephrol [serial online] 2010 [cited 2022 Jun 29];20:203-4. Available from:

  Introduction Top

Chryseobacterium meningosepticum, formerly known as Flavobacterium meningosepticum, has been reported to cause outbreaks of meningitis, primarily in premature newborns and infants in neonatal intensive care units (ICU). [1],[2] In adults it can cause endocarditis, pneumonia and bacteremia, skin and soft infection. [1],[3],[4],[5] There are a few reported cases of Chryseobacterium meningosepticum causing infection in dialysis patients. [6],[7],[8],[9] We report here a 37-year-old with diabetic nephropathy on hemodialysis who developed bacteremia with this bacterium. Literature search showed this is the first reported case in dialysis patient from India.

  Case Report Top

A 37-year-old man with stage V diabetic nephropathy was admitted in the nephrology unit of a tertiary care hospital with complaints of decreased urine output, low grade fever and puffiness of face and pedal edema for one week. He is a known diabetic and hypertensive on regular treatment. He is an A.C technician by occupation, working in the Middle East. He had undergone dialysis five times in the Middle East for the same complaints. At the time of admission, he had a temperature of 100.8°F, BP - 130/90 mm Hg, Pulse -80 beats/min, Respiratory rate - 20 breaths / min. On physical examination, he had pitting pedal edema. Hemogram showed hemoglobin 8.9gm%, total count 8300/cu mm with 71 % neutrophils, 22% lymphocytes, 6% eosinophils. Other investigations showed blood urea 125 mg/dl, s. creatinine 9.4 mg/dl, S. uric acid 5.3 mg/dl, total proteins 5.0 g/dl, Albumin 2.3 g/dl, A/G ratio 0.9, Random blood sugar 110 mg/dl. HIV, HBsAg and HCV ELISA were negative.

  Microbiological Workup Top

The blood culture collected after dialysis grew Gram negative bacilli after 48 hours of incubation at 37°C. On blood agar, the colonies were small, convex, non hemolytic, pale yellow pigmented colonies. The Gram negative rod was non motile, catalase and oxidase positive, non nitrate reducing, OF glucose utilized oxidatively, Bile Esculin and indole positive, DNA'se negative, Arginine was dehydrolized. It did not grow at 42°C and was resistant to Polymyxin B. Based on these biochemical reactions it was identified as Chryseobacterium meningosepticum. Antibiotic susceptibility was done on Muller Hinton agar by Kirby-Bauer disc diffusion method. The strain was sensitive to ceftazidime, ceftriaxone, cotrimoxazole, ciprofloxacin, piperacillin-tazobactum, cefoperazone-sulbactum and vancomycin. It was resistant to ampicillin, amoxyclav, aminoglycosides, imipenem, meropenem. A repeat blood culture taken after seven days also grew Chryseobacterium meningosepticum. The patient was treated with vancomycin 1 gm I.V stat single dose followed by vancomycin 500 mg once every five days for four weeks and ceftazidime 1 gm I.V post dialysis, on alternate days, for three weeks according to sensitivity results. The patient became afebrile and his subsequent blood cultures were sterile. Environmental screening was done to trace the source by culturing reverse osmosis water; dialysate fluid and tap water were sterile.

  Discussion Top

Chryseobacterium spp are organisms of low virulence and their presence in clinical specimens usually represents colonization and not infection [1] except Chryseobacterium meningosepticum, which is clinically significant and known to cause variety of infections. C. meningosepticum infection in patients on dialysis is rare. There are a few published reports, [6],[8],[9] mainly reported from Asian countries. From India, most of the reported cases include meningitis [3],[5] and endocarditis. [4] No reports of C. meningosepticum bacteremia in dialysis patients from India have been reported in English literature. There is only one report of Chryseobacterium septicemia in a renal allograft recipient. [10] Predisposing factors for Chryseobacterium meningosepticum infection include malignancy, neutropenia, diabetes, steroid use, malnutrition or being on dialysis. Colonization of patients through contaminated medical devices, humidifiers, incubators, intravenous catheters has been documented. They are inhabitants of soil and water and have been recovered from municipal water supplies and from hospital environment, [1] which can act as a potential source of infection resulting in outbreaks. Whenever there is an isolation of Chrysobacterium, an attempt should be made to trace the source of infection and stringent steps should be implemented to prevent the transmission of infection. Our patient had diabetic nephropathy stage V and was on regular maintenance dialysis. Our attempt to trace the source of infection was not successful as the environmental screening carried out to detect the possible source yielded negative results. The patient must have contracted the infection in Middle East where he had undergone dialysis previously.

Chryseobacterium meningosepticum has a peculiar antibiotic profile. The bacteria is inherently resistant to most antibiotics prescribed to treat gram negative bacteria like aminoglycosides, b-lactam agents, Chloramphenicol, carbapenems (due to the production of two betalactamases, ESBL and Class B Carbapenem, Hydrolyzing metallolacomtamase), but susceptible to agents used to treat gram positive bacteria (Rifampicin, Ciprofloxacin, Vancomycin, trimethoprim-sulfamethoxazole). Hence the appropriate choice of antibiotic for the treatment is difficult. Results of the susceptibility testing vary when different methods are used; further complicating the choice of antibiotic. The disc diffusion methods are unreliable and broth microdilution is the preferred method. [1] Though Vancomycin was used earlier to treat the patients, there are reports showing failure of this drug. Drugs like Minocyclin, trimethoprim-sulphamethoxazole and Rifampicin may be the good alternatives. [1],[3],[7] More studies are required for the evaluation of these drugs against C. meningosepticum. However, our patient responded well to Vancomycin and ceftazide.

In conclusion, Chryseobacterium meningosepticum can be a potential nosocomial pathogen. Positive identification of the organism enables prompt treatment and increases the chances of recovery. Administration of appropriate antibiotics, strict adherence to hand washing, routine screening of hospital water samples especially in dialysis units can prevent outbreaks with this bacteria.

  References Top

1.Steinberg JP, Rio D. Other Gram negative and Gram variable Bacilli. In Mandell, Douglas and Bennett's principles and practice of infectious diseases. 6 th edi. Philadelphia: Elsevier Churchill Livingstone; 2005. p. 2751-768.  Back to cited text no. 1
2.Agarwal KC, Ray M M. Meningitis in a new born due to Flavobacterium meningosepticum. Indian J Med Res 1971;59:1006-8.  Back to cited text no. 2
3.Bloch KC, Nadarajah R, Jacobs R. Chryseobacterium meningosepticum: an emerging pathogen among immunocompromised adults. Report of 6 cases and literature review. Medicine 1997;76:30-41.  Back to cited text no. 3
4.Bomb K, Arora A, Trehan N. Endocarditis due to Chryseobacterium meningosepticum. Indian J Med Microbiol 2007;25:161-2.  Back to cited text no. 4
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5.Padmaja P, Verghese S, Bhirmanandham CV, Ajith, Thirugnanasambandham S, Ramesh S. Chryseobacterium meningosepticum--an uncommon pathogen causing adult bacterial meningitis. Indian J Pathol Microbiol 2006;49:294-5.  Back to cited text no. 5
6.Teng MH, Diang LK, Su YC, Lin SH. Catheter related Chryseobacterium meningosepticum bacteraemia in a haemodialysis patient. NDT Plus 2009;2:433-4.  Back to cited text no. 6
7.Lin PY, Chu C, Su LH, Huang CT, Chang WY, Chiu CH. Clinical and microbiological analysis of bloodstream infections caused by Chryseobacterium meningosepticum in nonneonatal patients. J Clin Microbiol 2004;42:3353-5.  Back to cited text no. 7
8.Perera S, Palasuntheram C. Chryseobacterium meningosepticum infections in a dialysis unit. Ceylon Med J 2004;49:57-60.  Back to cited text no. 8
9.Lee SW, Tsai CA, Lee BJ. Chryseobacterium meningosepticum sepsis complicated with retroperitoneal hematoma and pleural effusion in a diabetic patient. J Chin Med Assoc 2008;71:473-6.  Back to cited text no. 9
10.Gupta A, Khaira A, Gupta A, Bhalla AK, Rana DS. Chryseobacterium septicaemia in a renal allograft recipient. Clin Exp Nephrol 2009.  Back to cited text no. 10

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