It’s odd: she doesn’t really look much different.
The ones outside, they’ve been partially eaten, or at least bitten. Many have gaping wounds from gunshots or from being hacked with gardening implements or whatever. I saw one with a full-sized shovel sticking out of its back. Just walking around with it sticking out of its back.
But Auntie just looks sort of like Auntie. She was always pale, and at her age she always had some trouble getting around. You can only really tell by the dry, vacant eyes. And she does tend to moan a bit more now.