Which of the following is not a biological agent of terrorism that can be treated with antibiotics?

Ebola virus is the correct answer because it is a viral agent, not a bacterial one. Antibiotics are effective against bacterial infections, but they do not work against viral infections like Ebola. On the other hand, anthrax, tularemia, and plague are all caused by bacteria and can be treated with specific antibiotics.

Anthrax is caused by the bacterium Bacillus anthracis, tularemia by Francisella tularensis, and plague by Yersinia pestis. Each of these bacterial infections has established antibiotic treatments that can effectively mitigate the effects of the respective disease. Understanding the types of pathogens and their respective treatments is crucial in the context of disaster planning and response to potential bioterrorism threats.