We're members of NERT / NET / CERT
Community Emergency Response Teams,
an excellent FEMA program taught and coordinated by local Fire Departments, which gives classes and hands-on training and certification for emergency preparedness and response, with advanced classes and drills and lots of opportunity to practice skills.
It is a voluntary citizen approach, and the participants are trained to help assisting in disasters after they, their family, and their neighbors are OK.
Most medical folk are naturally going to help during emergencies, but if a biowarfare outbreak occurs and first responders end up dying en masse, and protection is not given, medical personnel will not be as apt to jump in.