Should I throw awa all of my ECO CoMplete?

I had an outbreak of Callamanus worms where 4 of my 5 angelfish have died from.
This tank is now shut down and all that is left is the Eco Complete substrate.
I absolutley do NOT want to transfer these worms to any other tank. Do I have to throw away all of my eco complete soil or is there some way of disinfecting it? There is no longer any fish in the tank, all that is left is water sitting stagnant and the eco complete..

Thank you

Can anyone help me? *cries*

I wish I knew the answer. Someone will come along who knows...

I googled Callamanus worms and found several articles related to treatment. But nothing mentioning them staying in a tank of the cleaning of a tank. They are persistent and live within the digestive tract of a fish. It is said that they lay eggs as well. My guess is, if there are no hosts(fish) they may not live. But that's an uneducated guess.