sentences:  The zones which had been instituted to permit and restrict movements according to risk were progressively lifted from areas of New South Wales and Queensland.Following the provisional declaration of EI-free status for New South Wales and Queensland, ongoing surveillance and tracking measures are required until the international community recognises that the disease has been eradicated from Australia.Four Japanese racing stallions had arrived at Eastern Creek Quarantine Station earlier in August 2007, soon after an outbreak of EI in Japan.