What could have caused this? A healthy 30 year old woman delivered a healthy baby and left the hospital a day later with a normal CBC with the exception of a slightly elevated WBC. She returned 24 hours later to the emergency room with totally abnormal CBC ( hemoconcentrated and very high WBC) decreased serum calcium and TP, slightly elevated liver enzymes. Presented with infected episiotomy. Went to OR, then MICU. condition rapidly worsened. Patient expired within 24 hours of admission to hospital. Blood cultures, wound cultures were negative....??