What does pandemic really mean, and when is the term really warranted?
Most recently, theWorld Health Organization (WHO)declared COVID-19 a pandemic.
That framework is being applied to COVID-19.

Verywell / Tim Liedtke
Phase 4: Acceleration Interval
The new virus infects susceptible people.
Phase 5: Deceleration Interval
There is a consistently decreasing rate of cases in the United States.
For the most recent updates on COVID-19, visit ourcoronavirus news page.
Centers for Disease Control and Prevention.Epidemic disease occurrence.