How can the community health nurse prevents the occurrences of morbidity and mortality?

Depending on the statisical distribution of causes of M&M, the community health nurse can work to inform the populace of unhealthy behavior and offer alternatives, help organize managed care facilities and hospices, work with CDC and others in epidemiology, oversee or at least contribute to food and shelter programs, and work with child protective services (or the local variant) in the event of widespread problems invovling children. That's for a start.