Idk, maybe that's a coincidence, but I do know people are still researching the disease a bit, you might be able to scrounge up some papers about it with Google.
One thing tho for us bowyers; ccording to Woodfever (Houtkoorts) by Jan van der Veen, Dutch elm disease does not impede bowworthy-ness/ ability of the wood, u can use the wood that others (like the forest control people) might otherwise have cut or discarded because it's a Dutch elm diseased tree n make a bow of if.