This week, The Countess of Wessex opened the Thames Valley Air Ambulance @tvairambulance HQ in Stokenchurch, Buckinghamshire. Within minutes, @tvairambulance bring the expertise, equipment and treatment of the hospital to the scene of an emergency. The Countess met @tvairambulance staff and saw paramedics and doctors demonstrate the immersive simulation suite, which is used to train the crew.