Pfizer's protocol also called for the children selected to have their blood tested on arrival and five days later. (Compl. P 126.) If a child was not responding well to Trovan, Pfizer switched his or her treatment to ceftriaxone. (Compl. P 126.) Plaintiffs allege, however, that Pfizer neglected to analyze the patients' blood samples and therefore could not determine if a patient had a negative reaction until the manifestation of a visible and permanent injury. (Compl. P 126.) Plaintiffs further allege that low-dosing ceftriaxone resulted in injuries and deaths among the control group. (Compl. P 3.)