Final answer:
To protect against biological warfare, key preventive measures include vaccinations, personal protective equipment (PPE), and adherence to Bio-Safety Level practices and procedures in laboratory and field settings.
Step-by-step explanation:
Three preventive measures used for protection from Biological Warfare include:
- Vaccinations to provide immunity against biothreats.
- Personal Protective Equipment (PPE) such as protective suits, gloves, and respirators to prevent contact with biological agents.
- Implementation of Bio-Safety Level (BSL) practices and procedures to contain and minimize the spread of biohazards in laboratory and field environments.
In BSL-3 and BSL-4 laboratories where the risk of exposure to dangerous pathogens is high, additional precautions include restricted access, medical surveillance of laboratory workers, use of biological safety cabinets, and specialized ventilation systems to maintain directional airflow and prevent recirculation of potentially contaminated air. In the most severe cases, such as in a BSL-4 lab, stringent measures like full-body protective suits with designated air supply and secure containment facilities with autoclave sterilization of biohazard waste are imperative.