The purpose of this symposium on biological contaminants in indoor environments was to develop and explore sampling and analytical protocols for microbial agents that may be commonly or uncommonly found indoors. Classes of microbial agents considered in this symposium were:
• Viruses
• Bacteria including, gram negative, gram positive, Legionella, and mycobacteria
• Specialized bacteria including Chlamydia and rickettsia
• Fungi including saprophytes and pathogens
• Protozoa
• New microorganisms
• Mycotoxins and endotoxins