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
"...It is probably unwise to sit back and think this is a mild variant, it's not going to cause severe disease, because I think with the numbers going up all health systems are going to be under strain," Soumya Swaminathan told Geneva-based journalists.
She added that this perception appeared to be based on initial data out of parts of South Africa which might give a misleading impression due to high levels of existing immunity among the population.