Global disease experts say little is known about China's experience with long-term COVID effects thought to have afflicted millions with debilitating fatigue, brain fog and other symptoms
"There is now confidence ... that this variant is more transmissible that B.1.1.7 (Kent variant), now the question in practical terms over the next two to three weeks is - is this somewhat more transmissible than B.1.1.7 or is this a lot more transmissible and that will have implications for the long-term prospects of this epidemic in the UK and indeed the pandemic internationally," he told a news conference.