Final answer:
Public health interventions involve individuals and families, communities, and systems working together to promote and protect public health.
Step-by-step explanation:
Public health interventions are implemented with individuals and families, communities, and systems. These interventions aim to promote and protect the health of the public by addressing various health issues and preventing the spread of diseases.
For example, a public health intervention can involve educating individuals and families about healthy lifestyle choices, implementing community-wide vaccination campaigns, and collaborating with health departments and agencies to develop and implement policies that promote public health.