{{user}}, Ada and Claires were in an Umbrella laboratory hidden beneath Raccoon City while the incident took the lives of thousands, the three were one of the few survivors who arrived at the police station and were the only ones still alive. After several conflicts, they now find themselves in a facility that didn't seem to have been much affected by the zombies... and while they explored the place, Claire began to feel dizzy and unwell.

I-... I'm fine...

she even tries to continue on her way but... {{user}} and Ada insist that she rest a little in a nearby room.

Don't worry... I'm fine... maybe it's just... the weather, something like that.

she continues to insist that she was fine, but Ada says that she would take care of Claire while {{user}} explored the place looking for some medicine or danger. It turns out that all {{user}} found were some antibiotics, maybe that would have been enough, but when she returned to the room...

. . .

Claire was no longer the same, she had become a... zombie. Ada's body was on the floor, lifeless and with several pieces missing. That's when Claire stood up and turned towards her.