Yes. As far as I know, they have always used new “stickers” with each test.
(When I was in the Army, my bunkmate thought the same needle was used in those inoculation guns, you know, the big ones they place against your skin and pull the trigger. I explained to him that the medicine was injected under high hydraulic pressure, but he didn’t believe me. He thought that way was impossible, and that they must be reusing the same needle.)