BBC News
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image captionChloe Rideout was described as a "lovely person, a fit and well young lady"
A fit and strong 20-year-old woman died from sepsis after a routine appendix operation, an inquest has heard.
Chloe Rideout was first treated at Derriford Hospital in Plymouth and later died at the Royal Cornwall Hospital in Truro in October 2018.
Her mother, Sharon Rideout, told the coroner that "many people let her down" and raised several concerns about her treatment.
The inquest in Truro is due to last three days.
Mrs Rideout said the family was very concerned about the care her daughter received at Derriford Hospital, from the 111 out-of-hours GP service and 999 ambulance response to treatment at the Royal Cornwall Hospital.