The leading causes of death today compared to 100 years ago have shifted primarily from chronic diseases to which other type?

• A. Infectious diseases
• B. Accidents
• C. Heart diseases
• D. Cancer

Answer: (A)

The leading causes of death today have shifted from primarily chronic diseases, such as heart disease and cancer, to infectious diseases that have become more prevalent due to various factors, including globalization, urbanization, and climate change.

Infectious diseases, which include ailments such as influenza, HIV/AIDS, tuberculosis, and more recently, COVID-19, have seen a resurgence in certain populations and regions, largely facilitated by increased human interactions and the mobility of people across borders. This shift reflects changes in public health dynamics, where vaccination efforts and public health interventions have reduced the incidence of many chronic diseases while also highlighting vulnerabilities in infectious disease management.

Chronic diseases still account for a significant portion of mortality, but the landscape of health threats has evolved, emphasizing the importance of addressing both communicable and non-communicable diseases in current public health strategies. The focus on infectious diseases as a leading cause of death represents a notable change from a century ago, where lack of medical advancements and poor sanitation contributed heavily to mortality rates from such diseases.