Remove Contagion

Area 
Purifies the subject area of contagious disease-causing agents – microbes, disease spirits, foul air, etc. – rendering it sterile and free from infection. This spell can be used to cleanse and sterilize anything from a disease-cult temple to an operating theatre. It will not cure or relieve disease in living creatures; it serves only to cleanse and purify objects and surfaces. 
Infectious areas or objects treated with Remove Contagion cannot serve as a source of contagion (see Contagion, p. B443) until reinfected.

Duration: Until disease-causing agents return to the affected area. 
Base cost: 3. 
Time to cast: 2 seconds. 
Prerequisite: Decay, Clean, or Cure Disease.

Item 
Wand or staff, decorated in a snake pattern. Subject must be touched by item.  
Energy cost to create: 400.