Chih-Cheng Lai¹, Ching-Herng Wu², Jun-Ta Chen², Po-Ren Hsueh^3,4
1Division of Critical Care Medicine, Department of Emergency and Critical Care Medicine and ²Department of Internal Medicine, Lotung Poh-Ai Hospital, Yi-Lan; and Departments of ³Laboratory Medicine and ⁴Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Received: June 26, 2007      Revised: October 18, 2007       Accepted: December 13, 2007

Corresponding author: Dr. Po-Ren Hsueh, Department of Internal Medicine and Laboratory Medicine, National Taiwan University Hospital, No 7, Chung-Shan South Road, Taipei 100, Taiwan. E-mail: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

Gemella morbillorum, a Gram-positive coccus, is a natural inhabitant of the human oropharyngeal, upper respiratory and gastrointestinal tracts. Human infections caused by this organism are rare. We describe a case of peritoneal dialysis-related peritonitis due to G. morbillorum in a patient with systemic lupus erythematosus receiving steroid therapy. The patient responded well to antibiotics, without removal of the peritoneal catheter.

Key words: Gram-negative bacteria; Gram-positive bacteria; Peritoneal dialysis; Peritonitis; Staphylococcaceae

J Microbiol Immunol Infect. 2008;41:272-274.