Which of the following is categorized as a Category C bio terrorism agent?

The Nipah virus is categorized as a Category C bioterrorism agent due to its potential for mass dissemination and high mortality rates, alongside the fact that it is easy to spread and can cause panic and disruption. Category C agents are those that are emerging pathogens with a potential for future use as bioweapons. They include notable diseases that could potentially be engineered for mass impact because they are relatively easy to produce and distribute.

While other agents listed, such as anthrax and smallpox, have been historically emphasized as more known threats for bioterrorism and fall under Category A due to their severe disease potential and high mortality rates, the Nipah virus, although not as widely recognized, represents a growing concern due to its zoonotic nature and outbreaks in localized areas. This categorization highlights the importance of vigilance and preparedness for less commonly recognized but dangerous pathogens.