WHO official: Vaccination gap leaves window for virus to mutate
Some of the world's top public health experts are attending the Davos summit. They say vaccine equity is crucial to ending the COVID-19 pandemic. The World Health Organization's Emergencies Director Mike Ryan highlighted the vaccination gap. He said half of the world's population has received two doses, while the figure is only 7 percent in Africa. He said low inoculation rates in some countries can encourage viral mutations and lead to global consequences.