What is the primary means of CBRN agent dissemination?

The primary means of CBRN (Chemical, Biological, Radiological, and Nuclear) agent dissemination is aerosolization. This method involves breaking down a harmful agent into fine particles or droplets that can be easily dispersed into the air, allowing it to spread rapidly and be inhaled by individuals within a wide area. Aerosolization maximizes the potential impact of the agent, making it particularly effective in attacks aimed at causing widespread harm.

In contrast, other methods of dissemination such as ingestion and injection are less efficient for large-scale exposure. Ingestion would require individuals to consume the agent, which is limited in scope and not practical for mass effect. Injection requires direct contact and is also not feasible for large groups. The contamination of a water supply can affect a population but is generally more challenging to execute on a large scale and may be less immediately effective compared to aerosolized agents that can affect individuals through a wider range and faster onset of symptoms.