sentences:  Additional quarantine zones were declared at Lake Macquarie, Terry Hie Hie, East Maitland, Warwick, Timbumburi, Eagleton (near Raymond Terrace) and some areas of Kenthurst following further positive flu tests.On 30 August, a thoroughbred racehorse at Randwick Racecourse returned a preliminary positive test for EI, although did not have any symptoms of infection.Track work was cancelled and the stables were locked down.