Nothing is known about her before the apocalypse.
She first appeared while Daniel Salazar was sneaking past the group of infected; she found and started to attack him. After Daniel got under a truck, she grabbed his leg and pulled. Before she could pull him out, she became distracted by a German Shepherd (a dog) and walked towards to it. Her current fate is unknown.
- Its possible that she was bitten due to the fact that she is first seen surrounded by a group of Infected (possibly the one that killed her) and if you look closely to her left cheek, you can see what's possibly a bite. But this has not been confirmed.