Meet the definition of sepsis described in the study design section above. Patients will be eligible for enrollment as control patients if they
Are \< 18 years old
Are scheduled for an elective surgical procedure and need preoperative blood draw or will have an intravenous catheter placed for the purpose of their surgical procedure.
You may not be if
Congenital cardiac disease
On chronic immunosuppressive drugs such as chronic corticosteroid use, or preexisting immunodeficiency diseases
