Highly contagious or transmissible disease and has the potential for very rapid spread irrespective of national borders, causing serious socio-economic or public health consequences. This term is used in the global setting, as nothing is technically exotic or foreign.

• A. Zoonotic
• B. Exotic
• C. Emerging
• D. Transboundary

Answer: (D)

Transboundary diseases are those that can spread rapidly and cross national borders, causing widespread socio-economic and public health consequences on a global scale. The description emphasizes spread that ignores borders and has international impact, not something perceived as merely foreign or exotic. That makes this term the best fit. Zoonotic refers to diseases that can pass between animals and humans; Exotic implies something foreign or not native to a region; Emerging denotes diseases that are new or increasing in incidence. A classic example is foot-and-mouth disease, a transboundary animal disease that spreads across countries and requires multinational cooperation to control.