More contagious, less severe: What we know about Omicron

It is unknown how long the Covid-19 booster shots will remain effective. — AP

A month after it was first detected in southern Africa, Omicron is now known to be far more contagious than previous variants of Covid-19 but appears to cause a less severe illness than its predecessors.

What isn't clear is how the newest variant will change the face of the pandemic.