Public Health Nursing is a course that trains nurses to promote and protect the health of communities and populations. It combines nursing skills with public health principles, focusing on disease prevention, health education, and community-based care. Students learn how to assess community health needs, plan and implement health programs, and respond to public health issues such as outbreaks, maternal and child health, and environmental health concerns. The course prepares graduates to work in settings like schools, clinics, and public health departments.