Ambrosia

Ambrosia is a vaccine created by multibillionaire Bob Page for the Gray Death. A single dose (20cc) will temporarily cure any individual who uses it, and will provide up to 48 hours of immunity to the virus. After 48 hours, if the individual does not continue using the product, they will once again be at risk of contracting the Grey Death. Ambrosia is currently the only known vaccine for the Grey Death and is solely produced and monopolized by Page Industries.

Ambrosia is described as "non-organic compound containing eutactic components" and like the Grey Death, can only be manufactured nanotechnologically with a Universal Constructor. For that reason, it's only available in small quantities, meaning that only the richest and most important individuals can afford to buy it. In Greek mythology, Ambrosia was the food of the gods, which gave the immortality.

The beginning of Deus Ex involves the UNATCO agent JC Denton recapturing several containers of Ambrosia which were stolen by the NSF in an attempt to "give it back to the people".

Ambrozja