there isn't official recommendation, only general one, every OR departments need to choose one room for Covid 19 sick patients. to operate only urgent operation of Covid 19 sick patients.
empty the room from all the unneccessary instruments and equipments
minimum staff members in the room. doors closed all the operation time,
the patient will wakeup at the room when operation is finished then he will move to the spacial Corona department or intensive care for corona patients.
the room will be clean at list one hour after the operation ended .
during the operation the staff must wear N95 masks.
we sheer knowledge and experience between OR had nurses in our WhatsApp group.