Which of the following is an example of a primary prevention strategy in Australia?

Primary prevention strategies focus on preventing diseases or health issues before they occur. Vaccination programs are a prime example of this approach as they aim to protect individuals and populations from infectious diseases by providing immunization. By receiving vaccines, individuals develop immunity against specific pathogens, thereby reducing the incidence of disease in the community.

In contrast, regular health screenings for seniors are a form of secondary prevention, aimed at identifying diseases at an early stage to prevent complications. Rehabilitation programs for substance abuse and medication management for chronic illnesses are examples of tertiary prevention. These strategies are designed to manage existing health conditions or complications after a disease has already occurred, rather than preventing the onset of disease in the first place.