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Updated: Sep 10, 2026

Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 1. Biosafety Level 4 Suit Laboratory Suite Entry and Exit Procedures
Published on: October 3, 2016
AIDS--safety practices for clinical and research laboratories
Acquired immunodeficiency syndrome, or AIDS, is currently a significant health problem receiving widespread interest as both cause and treatment are sought. Indications are that a transmissible agent is involved. Both clinical and research laboratories are receiving greater numbers of specimens from AIDS patients as both prevalence of the condition increases and research efforts intensify. Until such time as the causative agent is identified, prudent practice warrants that a high level of precaution be observed. The Division of Occupational and Environmental Health Services of the Yale University Health Services presents a set of safety procedures and guidelines for use by personnel of both clinical and research laboratory facilities. These exceed previously suggested containment recommendations.
Acquired immunodeficiency syndrome, or AIDS, is currently a significant health problem receiving widespread interest as both cause and treatment are sought. Indications are that a transmissible agent is involved. Both clinical and research laboratories are receiving greater numbers of specimens from AIDS patients as both prevalence of the condition increases and research efforts intensify. Until such time as the causative agent is identified, prudent practice warrants that a high level of precaution be observed. The Division of Occupational and Environmental Health Services of the Yale University Health Services presents a set of safety procedures and guidelines for use by personnel of both clinical and research laboratory facilities. These exceed previously suggested containment recommendations.
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