WHO: COVID-19 vaccine roll-out won't achieve herd immunity in 2021
"We won't get back to normal quickly," Dale Fisher, chairman of WHO's Outbreak Alert and Response Network.
World Health Organization (WHO) Director-General Tedros Adhanom Ghebreyesus attends a news conference organized by Geneva Association of United Nations Correspondents (ACANU). July 3, 2020(photo credit: FABRICE COFFRINI/POOL VIA REUTERS)
