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According to the Department of Primary Industries, the 2013 outbreak destroyed 10 million oysters, the equivalent of $6 million, and saw the number of producers in the Hawkesbury region drop from 15 to three.
Oyster farmer Bruce Alford told the ABC the Department of Primary Industries is working on a disease resistant Pacific oyster, due to be released in 2018.
A research team comprising veterinary virologist Paul Hick, Professor Richard Whittington and Alford is currently studying the disease and how it expresses itself.