“Survivor Zero” is episode seven of season one of Helix.
There is a helicopter arriving at the base carrying armed troops belonging to Dr. Hatake’s sponsors, Ilaria, headed by Constance Sutton (played by Jeri Ryan, perhaps best known for a role as Seven of Nine in Star Trek: Voyager but who also guest starred in Warehouse 13). Who is pretty ruthless, even if she seems helpful. Not that the CDC team particularly trust her. And she has a really disturbing way of cleaning her teeth.
Aaand… we have turbo-zombies! Or at least a reasonable approximation of them. After all, the infected are still alive. Mind you, so are many turbo-zombies.