Noncatheter-related bacteraemia due to Chryseobacterium indologenes in an immunocompetent patient

Abstract

Chryseobacterium indologenes belongs to a group of nonfermentative Gram-negative bacilli and is an uncommon human pathogen. It causes severe infections such as septicaemia and ventilator-associated pneumonia in immunocompromised patients or after prolonged hospitalisation. We report a case of a noncatheter-related bacteraemia in a 22-year-old immunocompetent female whose blood culture showed the growth of C. indologenes, identified by Vitek GNI system (bioMerieux, France). The patient responded to treatment with ciprofloxacin. The pathogenicity and virulence factors of C. indologenes remain unclear. This case indicates that C. indologenes might cause symptomatic disease in immunocompetent persons with otherwise no associated underlying risk factors.