WHO backs AstraZeneca coronavirus vaccine and plays down risks

The World Health Organization (WHO) has backed the use of the AstraZeneca vaccine after some European countries paused their rollouts following reports of the formation of blood clots in several recipients. “More than 335 million doses of COVID-19 vaccines have been administered globally so far, and no deaths have been found to have been caused by COVID-19 vaccines,” WHO Director-General Tedros Adhanom Ghebreyesus said on Friday during an online news briefing.