Citrobacter koseri

Record number: 
Adverse Occurrence type: 
MPHO Type: 
Time to detection: 
Alerting signals, symptoms, evidence of occurrence: 
A 46 year old female had sudden chills, dyspnea, and tachycardia; transfusion stopped and temperature increased from 97.9 F before transfusion to 99.5 12 hours after transfusion. Patient recovered after course of cefepime.
Demonstration of imputability or root cause: 
C. koseri isolated from patient and RBC unit, antimicrobial susceptibilities of both isolates matched, genotyping not done. After investigation, no source of the contamination was found.
Imputability grade: 
1 Possible
Suggest references: 
Fernandes C, Oliveira MC, Jorge MT. A case report of Citrobacter koseri bacteraemia after transfusion of contaminated red cells. Transfusion Medicine 2012;22:450-451.