A disease that is transmitted from one person to another is called _____.

• A. Communicable
• B. Contagious
• C. Infectious
• D. Zoonotic

Answer: (A)

Communicable disease is the term for illnesses that can be spread from one person to another. It covers transmission through direct contact, airborne droplets, contact with contaminated surfaces, bodily fluids, or vectors, making the infection capable of moving between people.

The other terms have narrower or different meanings: contagious describes how easily a disease spreads from person to person (often implying quick spread by close contact), infectious refers to diseases caused by pathogens (the cause) rather than how they spread, and zoonotic means the disease originates in animals and can be transmitted to humans.