Final answer:
BSL-3 laboratories manage harmful microbes that could lead to serious or lethal infections by inhalation, requiring strict safety protocols such as restricted access, medical surveillance, use of respirators, and advanced laboratory design to ensure containment and protect public health.
Step-by-step explanation:
Characteristics of BSL-3 Laboratory Microbes and Infectious Agents
BSL-3 laboratories handle microbes and infectious agents that have the potential to cause lethal infections primarily through inhalation. These agents might be indigenous or exotic, and examples include Mycobacterium tuberculosis, Bacillus anthracis (anthrax), West Nile virus, and HIV. Due to the hazardous nature of these agents, BSL-3 labs have strict requirements including restricted access, medical surveillance and vaccinations for lab workers, use of respirators, and working in biological safety cabinets.
Furthermore, BSL-3 labs are equipped with advanced safety features like hands-free sinks, eyewash stations near exits, self-closing and locking doors, as well as directional airflow that prevents recirculation of air to maintain safety protocols.
It's crucial for those handling BSL-3 agents to adhere to these stringent procedures to control the spread of these dangerous pathogens, hence protecting laboratory personnel and the public.