Aged Portables & Water Damaged Classrooms: SBS or BRI?
The term "sick building syndrome" (SBS) is used to describe situations in which building occupants experience acute health and comfort effects that appear to be linked to time spent in a building, but no specific illness or cause can be identified.
The complaints may be localized in a particular room or zone, or may be widespread throughout the building.
In contrast, the term "building related illness" (BRI) is used when symptoms of diagnosable illness are identified and can be attributed directly to airborne building contaminants.
Indoor Air Facts No. 4 (revised)
Sick Building Syndrome