Amie Miller, 15, was taken to Basildon Hospital A&E in November 2008 after suffering headaches while studying for her GCSEs.
A jury returned a narrative verdict, saying that the medics had seriously failed to meet Amie's needs by failing to carry out basic checks, administering inappropriate treatment and failing to properly communicate with one another.
Speaking afterwards, Amie's family told how she was a promising student who had dreamed of becoming a paediatrician.
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Up to 20,000 people are expected to visit the first Duxford air show since the Shoreham disaster on the South coast.
Dry and fine across most parts, with some sunshine.
Tributes have been paid to a keen cyclist from Essex killed in a collision with a Mercedes at Canewdon.