Cause of Death Revealed for Girl Who Died After Mid-Flight Emergency [Video]

An Illinois county coroner has determined Sydney Weston’s cause of death.

Weston, the 8-year-old Missouri girl who experienced a medical emergency while aboard a regional jet en route to a family vacation in Chicago in June, died of “complications of chronic primary adrenalitis in the setting of multiple infections, including Strep and Enterovirus,” Peoria County coroner Jamie Harwood said in a press release.

Harwood said he reached the assessment “after consideration of the circumstances surrounding her death in correlation with a review of the medical records and after a complete autopsy with extensive ancillary studies.”

The Carl Junction girl also had duodenitis (inflammation of the small intestine) and thyroiditis (thyroid gland inflammation), according to the release.

“The associated diagnoses of chronic adrenalitis, duodenitis and thyroiditis are suggestive of an underlying autoimmune disorder,” Harwood said.

On Thursday, June 13, Weston was traveling on a SkyWest Airlines flight from Joplin to Chicago when she became unresponsive while on board, the coroner’s office …