There’s no clear-cut definition for when a pandemic starts and ends. How much of a threat a global outbreak is posing can vary by country.
There’s no clear-cut definition for when a pandemic starts and ends, and the threat posed by a global outbreak can vary from country to country.
“It’s somewhat a subjective judgment because it’s not just about the number of cases. It’s about severity and it’s about impact,” said Dr. Michael Ryan, executive director of the World Health Organization’s Health Emergencies Program. In January 2020, the WHO designated the coronavirus a global health crisis “of international concern.” By March, the United Nations health agency
reflecting that the virus had spread to nearly every continent and that numerous other health officials were saying it could be described as such.Viruses are not as smart as humans, but they are much more patient. And the coronavirus’ track record suggests it won’t simply burn itself out. The pandemic may be widely considered over when the WHO decides the virus is no longer an emergency of international concern, a designation its expert committee has been reassessing every three months. But when the most acute phases of the crisis ease within countries could vary., an infectious-disease expert at Duke University. Although there’s no universally agreed-upon criteria, he said countries will likely look for sustained reduction in cases over time.
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