Currently the effR in Australia is 1.34 (in community to not isolated spread). EffR may be reducing slightly, due to increased restrictions, not due to isolation which been disappointing).
The ratio of the cases that 'should have been' isolated to the cases that 'were' isolated is shown in orange. It's calculation does not require effR. But it does require R₀, which is presumed to be 5.0
Lately zero cases have been reported as in isolation, which is difficult to believe. Perhaps a political decision has been made not to publish the numbers?