Unfortunately, from what we know, we're not seeing that.
We saw major epidemics and large numbers of dead animals. We don't see as many dead animals now, but that's because there are fewer animals out there. Just last year up on Ellesmere, we continued to find more animals that had died from this.
The musk oxen have very low genetic diversity already, which means they have very low capacity to deal with new pathogens.
On the Arctic islands at this point, we don't see much more resistance developing.