Which of the following best describes the three groups of diseases or organisms that can be spread during a biological non-fire emergency?

• A. Bacteria, fungi, toxins
• B. Bacteria, viruses, toxins
• C. Bacteria, viruses, fungi
• D. Bacteria, viruses, toxins

Answer: (D)

In a biological non-fire emergency, the three main categories of agents that can spread are living infectious agents (bacteria and viruses) and non-living hazardous substances known as toxins. Bacteria and viruses are germs that can multiply and cause disease, and they spread through ways like direct contact, droplets, or contaminated surfaces. Toxins, while not organisms themselves, can cause illness when people are exposed; they may be produced by bacteria or fungi or be chemical hazards introduced into the environment. Fungi can cause disease as well, but the standard grouping used in this context focuses on bacteria, viruses, and toxins, which is why this trio best describes the three spreadable groups in a biological non-fire emergency.