What characterizes Category A bio terrorism agents?

Category A bioterrorism agents are characterized by their high lethality and potential for widespread harm, making them significant threats in terms of public health. This classification includes pathogens that can be easily disseminated or transmitted from person to person, leading to high morbidity and mortality rates. The agents listed in this category typically have a high public impact due to their ability to cause panic, require special action for public health preparedness, and might strain healthcare resources.

Focusing on the other characteristics presented, Category A agents are not associated with less impact on public health, low lethality, or long recovery times. In contrast, the traits of these agents emphasize the need for immediate public health response and preparedness due to their severe consequences for affected populations.