The term 'emerging' refers to a disease whose incidence has recently increased in an area and has the potential for significant health impacts in animals or humans. This describes:

The term 'emerging' refers to a disease whose incidence has recently increased in an area and has the potential for significant health impacts in animals or humans. This describes:

• A. A disease whose incidence has recently increased in an area and has the potential for significant health impacts in animals or humans.
• B. A disease that has existed for a long time but disappeared.
• C. A disease transmitted only by vectors.
• D. A disease restricted to plants

Answer: (A)

Emerging diseases are those whose incidence has recently increased in a particular area and have the potential to cause significant health impacts in animals or humans. This fits the description because it centers on a recent rise in cases in a specific location and the possibility of substantial harm to health. Emergence can happen when a pathogen enters a new region, jumps to new hosts, or changes in ways that boost transmission, often influenced by factors like travel, climate, and ecological shifts. For example, West Nile virus appeared in North America and spread, SARS appeared with rapid spread in humans, and Zika emerged in new regions with notable health effects. The other options don’t fit this pattern: a disease that existed for a long time but disappeared isn’t about a recent increase; being vector-borne isn’t the defining feature; and a disease restricted to plants isn’t about animals or humans.

Emerging diseases are those whose incidence has recently increased in a particular area and have the potential to cause significant health impacts in animals or humans. This fits the description because it centers on a recent rise in cases in a specific location and the possibility of substantial harm to health. Emergence can happen when a pathogen enters a new region, jumps to new hosts, or changes in ways that boost transmission, often influenced by factors like travel, climate, and ecological shifts. For example, West Nile virus appeared in North America and spread, SARS appeared with rapid spread in humans, and Zika emerged in new regions with notable health effects. The other options don’t fit this pattern: a disease that existed for a long time but disappeared isn’t about a recent increase; being vector-borne isn’t the defining feature; and a disease restricted to plants isn’t about animals or humans.