Righteous Plague by Robert Abernathy — Read

Euge was busy in the microscope room, examining tissue from the last run of test animals, when the communicator buzzed and told him that the Dictator had arrived and wanted to see him at once.

He left the room by way of an airlock, in which -- Dictatorial summons notwithstanding -- he spent full five minutes under a spray of disinfectant chemicals and radiations; after the lock had cleared he stripped off the airtight armor he wore without touching any of its outer surfaces, and left the chamber quickly.