What one characteristic will most likely lead to a disease outbreak being classified as a pandemic?

Phase 1: A virus in animals has caused no known infections in humans.Phase 2: An animal flu virus has caused infection in humans.Phase 3: Sporadic cases or small clusters of disease occur in humans. Human-to-human transmission, if any, is insufficient to cause community-level outbreaks.Phase 4: The risk for a pandemic is greatly increased but not certain.Phase 5: Spread of disease between humans is occurring in more than one country of one WHO region.Phase 6: Community-level outbreaks are in at least one additional country in a different WHO region from phase 5. A global pandemic is under way.

How many people die from a pandemic depends upon:

The number of people who become infectedThe severity of disease caused by the virus (its virulence)The vulnerability of affected populationsThe effectiveness of preventive steps

Iwould sure like to answer your question but i honestly just don’t know