Which term describes a disease that can be transmitted from one individual or species to another?

The term that describes a disease that can be transmitted from one individual or species to another is "communicable disease." This classification is based on the ability of the pathogen causing the disease—such as bacteria, viruses, or parasites—to spread from one person to another, often through direct contact, respiratory droplets, or vectors like insects.

Understanding this concept is crucial in the fields of public health and emergency care, as it highlights the need for measures to prevent the spread of such diseases, such as vaccinations, quarantine, and hygiene practices. This differentiates communicable diseases from non-communicable diseases, which do not spread from person to person and are typically caused by genetic, environmental, or lifestyle factors.