Answer:
The option that is not a characteristic of a pandemic is that it affects one region.
Explanation:
The definition of pandemic is the worldwide spread of a new disease, it means that the disease affects large parts of the world, which sometimes could be complete countries or complete continents, therefore the quantity of affected people is represented in big numbers, being one of the characteristics of a pandemic the hardness to control it, it is also complicated to be eradicated.
