Is when an infectious agent can be transmitted to an individual by contact.

• A. Communicable Disease
• B. Reservoirs
• C. Host
• D. Pathogen

Answer: (A)

Communicable disease describes conditions that can be transmitted from one person to another through contact with an infected individual or a contaminated object. The phrase in the question captures that transfer potential, which is why this term fits best. A reservoir is where the pathogen can live or multiply, not the act of transmission. A host is the organism that harbors the pathogen, not the mechanism of spread. A pathogen is the infectious agent itself, not the ability to pass it along to others. For example, influenza is communicable because it can spread between people through direct contact and droplets, whereas tetanus isn’t spread from person to person by contact.