COVID is still a threat and will remain so until the coronavirus stops mutating; which seems implausible. The newest mutations of the coronavirus that causes COVID have been the headache of researchers and health experts. Reason: They have the ability to escape immunity. They can even dodge the immunity induced by the vaccines, thus making it extremely necessary to be vaccinated and take booster shots.

from Times of India https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/coronavirus-keep-yourself-safe-from-superspreader-omicron-variants-immunity-boosting-foods-to-have/photostory/95224842.cms