I think the key to prevention is education, really being aware of what post-traumatic stress disorder is. It's also having a top-down approach so that the leaders—for example, the fire chief, or the leader in policing—are on board, are educated about the consequences of the job, and are supportive. They facilitate the education, which then, I think, can lead to early intervention.
In terms of education, we need programs to help educate people even during their training. What are some of the symptoms of post-traumatic stress? What do I need to be aware of? I think this is currently being done. The military has modelled such a program. This is currently being adapted for the paramedics and for the policing force. That way both leaders and workers are very familiar with the symptoms, and they can track their own well-being. Then, if they get into trouble, if they get increased symptoms, they have access to treatment very quickly.
I think if firefighters or policing officers had a special service available to them, that they could access very quickly, through which they could get support and their family could also get support, that could go a long way to really decreasing both the morbidity and the mortality of this devastating disorder.