Red Blooded American Girl

A homeopathic scientist is hired by a mysterious research foundation to help cure a family of viral blood diseases. He soon discovers the truth: the lead doctor is a vampire trying to control a vampiric virus he created. When a volunteer he's fallen for becomes infected, she transforms into a creature of hunger and lust. He must use his scientific skills to devise a cure and save her from the monstrous infection and her creator's sinister plans.