Bloodthirst
Jeanne Kalogridis
 The Enterprise is called to a remote bio-research lab on planet Tanis to answer a distress call, finding only a single survivor upon arrival. The survivor, Dr. Adams, is uncooperative in discussing the details of the research on Tanis, or how the other members of the research team died. Eventually, it is revealed that Tanis was an illegal biological warfare lab, run by a secret faction within Starfleet. The story also focuses on a security officer, Stanger, who becomes infected after an attack by Dr. Adams.