Psychrobacter arenosus Bacteremia after Blood Transfusion, France - Vol. 19 No. 7 - July 2013 - Emerging Infectious Disease journal - CDC
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Volume 19, Number 7—July 2013
Psychrobacter arenosus Bacteremia after Blood Transfusion, France
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Bacteria are the leading cause of transfusion-transmitted infections (1). Contamination occurs more frequently in platelet concentrates than in erythrocyte units, especially because of different storage conditions (20°C–24°C for platelet concentrates vs. 1°C–6°C for erythrocyte units). However, several bacterial species are able to grow at 4°C (1–3). We report a case of transfusion-transmitted bacterial infection caused by Psychrobacter arenosus, an environmental psychrotolerant and halotolerant bacterium.
AbstractWe report a case of transfusion-associated bacteremia caused by Psychrobacter arenosus. This psychrotolerant bacterium was previously isolated in 2004 from coastal sea ice and sediments in the Sea of Japan, but not from humans. P. arenosus should be considered a psychrotolerant bacterial species that can cause transfusion-transmitted bacterial infections.
In October 2009, a 58-year-old man was admitted to Grenoble University Hospital (Grenoble, France) for a blood transfusion because of severe anemia. Idiopathic medullary aplasia had been diagnosed in 1997, and he had had grade 3 myelofibrosis since 2006. He had been receiving palliative care since November 2007, and received transfusions of erythrocyte units every 3 weeks. On October 27, 2009, he received 3 erythrocyte units (at 8:30
Standard laboratory testing showed no ABO incompatibility, hemoglobinemia, hemoglobinuria, and coagulation disorders. According to recommendations of the Agence Nationale de Sécurité du Médicament (Saint-Denis, France), 3 sets of aerobic and anaerobic blood cultures (Bactec; Becton Dickinson, Pont de Clay, France) for the recipient (1 immediately and 2 others 4 hours later) and the remaining part of the third erythrocyte unit were sent to the bacteriology laboratory for culture. Gram staining of a blood smear prepared from the third erythrocyte unit showed a large number (≈106 CFU/mL) of gram-variable coccobacilli.