Which of the Following is a Category a Agent

Question

Which of the following is a Category A agent?
A)Bacillus anthracis
B)Escherichia coli
C)Vibrio cholerae
D)Chlamydia psittaci

Accepted Answer

Bacillus anthracis is a Category A agent according to the Centers for Disease Control and Prevention (CDC). These agents are considered to be the highest potential bioterrorism threats and pose a significant risk to national security. Bacillus anthracis is the causative agent of anthrax, a potentially fatal disease that can affect both animals and humans. Escherichia coli, Vibrio cholerae, and Chlamydia psittaci are not considered Category A agents.