This content aligns with Goal 3: Good Health and Well-being, Goal 9: Industry, Innovation, and Infrastructure, and Goal 10: Reduced Inequalities by considering the potential ethical issues that may arise with digital therapeutics intended for mental health care for different populations.

This content aligns with Goal 3: Good Health and Wellbeing as well as Goal 10: Reducing Inequalities by examining the consequences of failing to adequately address long-standing social determinants and structural disparities related to the public's health

This content aligns with Goal 10: Reduced Inequalities by exploring how social factors such as access to housing, employment, education, and healthcare contributed to the inequitable impacts of COVID-19.

This content supports the SDG Goal 3: Good health and well-being by exploring the important human pathogen HDV.

This content supports the SDG Goal 3: Good health and well-being by exploring the human hepatitis B virus (HBV), family Hepadnaviridae, as a highly infectious virus transmitted by blood and body fluids.

This chapter aligns with Goal 3: Good Health and Wellbeing and Goal 15: Life on Land by describing effective and compassionate end of life care for dogs to promote companion animal welfare.

This content aligns with Goal 3: Good Health and Wellbeing as well as Goal 10: Reducing Inequalities by presenting early evidence on what it meant to be a frail older individual in the COVID-19 pandemic from the perspective of three different settings: community, hospitals, and nursing homes. Lessons learned provide opportunities to improve health outcomes, community and health services, and how we want to live as aging societies.