Child 2 was a 27-month-old, previously healthy girl who was found dead in her bed in August 2009; she had no Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 18, No. 1, January 2012 9 known history of disease or symptoms. During necropsy, signs of cerebral herniation were detected. A small vascular malformation surrounded by edema was found in the brain. No signs of encephalitis or hemolytic uremic syndrome were found. The following sample materials were collected: CSF, blood, feces, myocardium, pericardial aspirate, lung tissue, and respiratory secretions (online Appendix  Table) . In the CSF, mononuclear pleocytosis was noted. Results of routine bacteriologic culture found coagulasenegative staphylococci in the CSF, a few nonhemolytic streptococci in the lung tissue, and a few nonhemolytic streptococci and a few Staphylococcus aureus organisms in the pericardial aspirate. Verotoxin-producing Escherichia coli was cultured from the fecal sample. The conclusion of the autopsy and laboratory fi ndings was that cerebral herniation was the immediate cause of death.