HONG KONG, China (AFP) — Hong Kong on Friday confirmed it has requested AstraZeneca suspend delivery of its Covid-19 vaccine amid fears of severe side effects and concerns over its efficacy against new variants of the coronavirus. Europe’s medicines regulator said this week the AstraZeneca vaccine could cause very rare blood clots in some recipients, prompting a cascade of countries to pull the plug on giving it to people under a certain age. Britain sought […]