Board Thread:Questions and Answers/@comment-26184563-20140330234219/@comment-24903971-20140505052834

In Wolverine's case his entire skeleton is covered with adamantium and this slows down his healing factor. Laura's only covers her claws and does not interfere as much with her healing factor. So my guess is that in her case her healing is able to keep up with the poisoning because it doesn't effect her as much/quickly because she has less metal grafted into her.