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Table 1 Description of E. sakazakii and E. cloacae strains used in this study

From: Virulence studies of Enterobacter sakazakiiisolates associated with a neonatal intensive care unit outbreak

Organism Strain number Neonate Isolation site Symptoms Isolation date (day/mn/yr) PFGE profile
E. sakazakii 696 D Stools NEC IIb 08/06/1994 1
E. sakazakii 701 F Peritoneal fluid NEC IIIb (died) 07/04/1994 2
E. sakazakii 767a H Trachea Meningitis (died) 11/05/1994 2
E. sakazakii 709 C Trachea Septicaemia 12/05/1994 2
E. sakazakii 695a J Trachea NEC II (died) 07/06/1994 2
E. sakazakii 693 Q Stools Asymptomatic 18/06/1994 3
E. sakazakii 716   Infant formula   11/07/1994 4
E. cloacae 766 R Blood culture Sepsis (died) 04/06/1994 NAc
  1. a Strains demonstrated extended spectrum β-lactamase activities.
  2. b NEC Stage II (definite NEC) is characterised by the systemic signs of temperature instability, apnoea, bradycardia, lethargy with additional symptoms of absence of bowel sounds, radiological signs of intestinal dilation, ileus and pneumatosis intestinalis. NEC Stage III (advanced NEC) is where the neonate is critically ill with metabolic acidosis, neutropenia, signs of generalised peritonitis, marked tenderness and distension of abdomen.
  3. c NA, Not appropriate