Explained: Why COVID vaccines are partially effective against omicron
The HinduThe new coronavirus omicron variant has spread rapidly around the world. But at the same time, Fauci also made it clear that this is not certain and cautioned about making judgments on whether omicron is less dangerous or really causes less severe disease than delta. Not only does the virus multiply more, but the omicron variant also has the "stupidest combination" of properties, he argues: immune escape and fitness gain. All the same, the omicron variant will keep us in the grip of the pandemic for months to come, warned Charite virologist Drosten: "The delta virus is our problem until January; the omicron virus is our problem until summer." It is true that the existing vaccines are expected to further lose effectiveness due to the omicron variant.