Question

1. a disease that spreads to much of the world is called a(n)

a. pandemic.
b. endemic.
c. epidemic.
d. emerging infectious disease.

Explanation:

To solve this, we analyze each option:

• Option A: A pandemic is defined as a disease that spreads across a large region, often globally. This matches the description of a disease spreading to much of the world.
• Option B: An endemic disease is regularly found in a particular area and not widespread globally.
• Option C: An epidemic is a disease that spreads rapidly within a community or region, not necessarily globally.
• Option D: An emerging infectious disease is a newly identified or re - emerging disease, not defined by its global spread.

Answer:

A. pandemic.