A hospital spokesman said:
Basildon and Thurrock University Hospitals NHS Foundation Trust would like to send its condolences to the family of Amie Miller at this difficult time.
The Trust would also like to apologise for failings in the care provided to Amie when she was treated here five years ago.
A number of changes have since been introduced in the treatment of children and adults with neurological illness, including the introduction of more regular observations.
More top news
Police in Cambridgeshire seized a variety of weapons when they discovered a man growing twelve cannabis plants at a property in Soham.
Suffolk Coastal Council have launched a campaign aimed at clearing up the amount of fishing litter on the coast.
Scientists from this region say work being done here is helping more children than ever before to survive cancer.