Ok here goes: Those two tests are included in every box of kits. There is one positive and one negative, and the rest of the kits are neutral, as in sterile. The two special kits are a reference for what a positive test and what a negative test should look like. Maybe I'm wrong though. My line of thinking is steered by the word "Control"

*Edit; I did a little digging and a little reading and got this

They are running an experiment on us.

Ok here goes: Those two tests are included in every box of kits. There is one positive and one negative, and the rest of the kits are neutral, as in sterile. The two special kits are a reference for what a positive test and what a negative test should look like. Maybe I'm wrong though. My line of thinking is steered by the word "Control"