There are five stages of disease prevention: primary prevention, secondary prevention, tertiary prevention, quaternary prevention, and quinary prevention. Primary prevention focuses on reducing the risk factors of a disease, such as promoting healthy lifestyles, providing immunizations, and educating the public. Secondary prevention focuses on early detection and treatment of a disease, such as through screenings and regular check-ups. Tertiary prevention focuses on managing the effects of a disease, such as through lifestyle changes or medications. Quaternary prevention focuses on the prevention of over-treatment, such as avoiding unnecessary tests or procedures. Finally, quinary prevention focuses on the prevention of social harms, such as reducing stigma or providing support services for those affected by a disease.