Footstep of a new superbug Myroides spp.: A study based on a series of cases from a tertiary care hospital of Eastern India

Abstract

Background: Infections caused by Myroides spp. have been found very rarely in recent scientific literature. These Gram-negative bacilli however are increasingly being implicated in various life threatening infections, of late, in some of the critical care settings. Objective: To detect Myroides spp infections with strong degree of suspicion and to review the surveillance of multi drug resistant organism spread and containment in critical care settings of hospital. Methodology: Suspected isolates were found in the course of routine laboratory activities of blood and urine culture from patients admitted in intensive care unit, from amongst the non -fermenter Gram negative bacteria set as the inclusion criterion, and subjected to identification and antimicrobial susceptibly testing in automated system following standard microbiological methodology by Vitek-2 automated identification and susceptibility testing system. Interpretation of the results was done following the guidelines of Clinical and laboratory standards Institute. History and other relevant investigation results, as required, of the patients were retrieved from hospital record section. Result: Out of the 620 non-fermenter gram negative bacilli included in the study, Myroides spp. isolates were found five in number from blood and urine samples of the five patients. Tigecycline and minocycline were found to be most effective drug against the organism followed by colistin and imipenem. Conclusion: A robust Antimicrobial stewardship policy and implementation tool with efficient infection control measures are backbone to limit emergence and spread of such microbes in unforeseen days.

Keywords

• myroides spp
• uncommon
• pathogen
• drug resistant