Tiffany Harris, PhD, MS discusses the percentage of the population that must be vaccinated before authorities will ease COVID-19 restrictions.

“Public health experts have argued over what the ideal percentage of vaccinations that would need to be met before restrictions are relaxed. Some have said 60%, others have said over 80%, Dr. Tiffany Harris, an associate professor of epidemiology at the Columbia University Medical Center, told City & State.”

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