sentences:  The NSW Government blamed the Eastern Creek quarantine station and demanded the Federal Government hold an inquiry into the "biosecurity breach".Federal Agriculture Minister Peter McGauran denied any quarantine breach and said the Maitland event "seems to be where the spread of the infection occurred".A quarantine zone was declared around Eastern Creek Quarantine Station and the Centennial Parklands Equestrian Centre, where the first infections were identified, on 24 August.