Loque'eque virus
- Virus created by the Loque'eque civilization prior to their extinction (ENT: "Extinction"; ENT Novel: To Brave the Storm)
- Caused physical and mental transformation into Loque'eque, including memories of life and an urge to return to Urquat, the capital city of the Loque'eque homeworld (ENT: "Extinction"; ENT Novel: To Brave the Storm)
- Vaccination developed and distributed by Doctor Phlox September 30, 2153, largely wiped out in the months to follow (ENT: "Extinction")
- Single sample maintained in Earth Starfleet custody for further study, cultural preservation (ENT: "Extinction")
- Preserved sample captured by Tal Shiar 2157, weaponized against Haakona Prime to end conflict with Haakonans (ENT Novel: To Brave the Storm)