Abstract
Background
Kocuria species are Gram-positive, aerobic cocci, and members of the Micrcoccaceae family that are known to be opportunistic pathogens. Although there have been sporadic reports of infections caused by Kocuria species, little is known regarding their human pathogenicity and clinical characteristics.
Case report
We herein report a case of a peripherally inserted central catheter (PICC)-related bloodstream infection caused by Kocuria marina in a 90-year-old Japanese with multiple cancer. The patient, who was admitted due to adhesive intestinal obstruction, suddenly developed sepsis on day 29 following admission. Three sets of blood cultures and a culture of the PICC tip revealed the growth of Gram-positive cocci arranged in clusters. The patient improved quickly after treatment with an antimicrobial agent and catheter removal. The organism was identified as Kocuria varians using the MicroScan Walkaway system and K. varians/Kocuria rosea with a 99.7% probability using an API Staph system. However, 16S rRNA gene sequencing analysis identified the pathogen as K. marina.
Conclusion
Although K. marina is a rare pathogen, physicians should consider it in case of catheter-related infections in patients with serious underlying conditions. As commercial identification systems can misidentify species within the Kocuria genus, the use of genomic methods such as 16S rRNA sequencing and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry may be useful for the precise identification of Kocuria to the species level.
References
Purty S, Saranathan R, Prashanth K, Narayanan K, Asir J, Devi CS, et al. The expanding spectrum of human infections caused by Kocuria species: a case report and literature review. Emerg Microbes Infect. 2013;2:e71.
Kandi V, Palange P, Vaish R, Bhatti AB, Kale V, Kandi MR, et al. Emerging bacterial infection: identification and clinical significance of Kocuria species. Cureus. 2016;8:e731.
Mirijello A, Impagnatiello M, Zaccone V, Ventura G, Pompa L, Addolorato G, et al. Catheter-related bloodstream infections by opportunistic pathogens in immunocompromised hosts. Eur Rev Med Pharmacol Sci. 2015;19:2440–5.
Leonidou L, Gogos CA. Catheter-related bloodstream infections: catheter management according to pathogen. Int J Antimicrob Agents. 2009;36:S26–32.
Lee JY, Kim S-H, Jeong HS, Oh SH, Kim HR, Kim YH, et al. Two cases of peritonitis caused by Kocuria marina in patients undergoing continuous ambulatory peritoneal dialysis. J Clin Microbiol. 2009;47:3376–8.
Brändle G, L’Huillier AG, Wagner N, Gervaix A, Wildhaber BE, Lacroix L. First report of Kocuria marina spontaneous peritonitis in a child. BMC Infect Dis. 2014;14:522–4.
Horiuchi A, Kubota N, Hidaka E, Shimabukuro A, Yasukochi S, Nakamura T, et al. Notable alkaline tolerance of Kocuria marina isolate from blood of a pediatric patient with continuous intravenous epoprostenol therapy. J Infect Chemother. 2015;21:680–6.
Lee MN, Huh HJ, Kim B, Kang CI. A case of catheter-related Kocuria marina bloodstream infection in a patient with multiple myeloma. Lab Med Online. 2014;4:51–4 (in Korean).
Savini V, Catavitello C, Masciarelli G, Astolfi D, Balbinot A, Bianco A, et al. Drug sensitivity and clinical impact of members of the genus Kocuria. J Med Microbiol. 2010;59:1395–402.
Altuntas F, Yildiz O, Eser B, Gündogan K, Sumerkan B, Çetin M. Catheter-related bacteremia due to Kocuria rosea in a patient undergoing peripheral blood stem cell transplantation. BMC Infect Dis. 2004;4:62.
Acknowledgement
We thank Macrogen Japan Corporation for performing polymerase chain reaction amplification and sequencing to analyze the 16S rRNA gene. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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Mori, N., Nishihara, Y., Tayama, H. et al. Peripherally inserted central catheter-related bloodstream infection caused by Kocuria marina in an elderly man. Infection 45, 683–686 (2017). https://doi.org/10.1007/s15010-017-0980-9
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DOI: https://doi.org/10.1007/s15010-017-0980-9