'Omicron won't be more dangerous than other circulating Covid-19 variants'

Existing Covid-19 vaccines may not be 100% effective against the Omicron variant as far as infection is concerned, but will still help curb the infection, says Prof Polly Roy

The first few cases of the Omicron Covid-19 variant have, inevitably, been found in India. Why is there so much worry about this particular strain, given that the world has known SARS-CoV-2, the virus that causes Covid-19, for nearly two years now, and that it was always expected that more variants would emerge, some more dangerous and some less so? Why are many countries seeming to respond with panic and what does this say about this mutation of the virus? 

What about the efficacy of existing Covid-19 vaccines against the Omicron variant? Stéphane Bancel, chief executive officer of Moderna, has