Major finds out what the others want to do about their contamination so the journey can progress.
Artemis carefully makes her way to to the tree room, and stops when she sees Uhura. Then she inches toward Seth and Uhura. If Uhura's rad scanner starts beeping, Artemis will back away until it stops. If Uhura raises her gun, Artemis will leave the room as quickly as possible.
(Artemis is trying to determine the minimum safe distance, without getting shot.)
Uhura goes to the lab and does a careful search to see if she can find a way to decontaminate the infected members of the squad. She will have her analyzer always checking so the moment a bad signal registers she will get out of there.
Major will drag Gault's body to the decontamination chamber making sure that no one touches Uhura in an orderly fashion. If he gets help to move Gault's body he will take it.
When each contaminated person come in she will stand aside and away from them. Once they are in the chamber she will ask Major to close it and then turn it on.
Seth will follow all of Uhura's instructions while making sure Seth does not get close to her.