What agents or chemicals are most likely to be used in a terrorist attack?
It is important to remember that the likelihood of a terrorist attack in Canada using biological or chemical agents is very remote. Regarding the agents most likely to be used in the event of such an attack, Canada and the United States have agreed on a list of top bioterrorist agents, including anthrax, smallpox, plague, tularemia, botulism and certain viruses that cause viral haemorrhagic fevers. Of the biological agents examined, anthrax is the most likely to be used in a bioterrorist attack. Tularemia or plague is a low probability, botulism is lower still, and both smallpox and the viral haemorrhagic fever agents were assessed a very low probability.
