There has been no proven public health approach that one should be infected with the Covid-19 Omicron variant to help build herd immunity, said Health Minister Khairy Jamaluddin.

“It doesn’t matter what sort of variant. Omicron, Delta, Alpha, and Beta, don’t go voluntarily looking to get infected as firstly, we do not know what are its effects.

“Second, we do not know the effects of...