> Cassidy found that infected wolves were 11 times more likely than uninfected ones to leave their birth family to start a new pack, and 46 times more likely to become pack leaders
I thought we now believe that wolf packs are purely family units - mother, father and their cubs. There's no alpha wolves leading a pack of other male and female wolves, just stray wolves and family units. So a wolf pack is only comprised of the leader and its cubs.