ACDIV

ACDIV stands for the Austen Center for the Development of Inoculations and Vaccines. It's the most well-known organization dealing with Stellan's Disease, and holds a lot of power with the Republic as well. The original ACDIV hub was built in the city of Austen, Elida. Despite ACDIV eventually growing to have research centers and labs all over the CRNC, the Austen title remains.

When Stellan's Disease began to surface after the Solar Flares, the remaining governments of the world realized that they had a worldwide crisis on their hands. Thus, they combined their resources to create ACDIV in the hope of finding a cure.

Throughout the series, Angela and Helena Sator frequently mention the mantra "ACDIV, not passive", with Sator saying that saving the human race is worth the deaths of a few. This idea is accepted by most at first, mainly because so little was known about ACDIV's actual practices and reach in the government. Eventually, however, when no cure has been discovered after years of experiments, many begin to be suspect something was wrong.