Omicron may be less effective at attacking lungs than previous Covid variants

New research concluded that mutations on the Omicron's spike protein may reduce how it replicates in the lungs and causes severe disease. Picture: AP Photo/Virginia Mayo

The Omicron Covid-19 variant might be less efficient at attacking the lungs than earlier variants.

That's according to new research from the Cambridge Institute of Therapeutic Immunology and Infectious Disease.