What is one characteristic of Category C bio-terrorism agents?

Category C bio-terrorism agents are those that are considered to have a potential threat requiring ongoing monitoring and review due to their accessibility and the potential to be developed as biological weapons. These agents are not necessarily the most lethal or contagious but possess characteristics that could make them a concern for public health and safety in the future. They could include emerging infectious diseases or those that could be engineered to increase their threat level, which is why continuous review is essential. This ongoing assessment is crucial for preparedness and response strategies, allowing for timely interventions if needed.

In contrast, options discussing immediate threats or lethality more align with Category A agents, which pose the greatest risk to national security due to their high mortality rates or ease of transmission. Thus, the emphasis of Category C on potential threat rather than immediate action underscores their unique classification within bio-terrorism agent categories.