Omicron variant may not be 'milder' itself, US scientists warn  EastMojoCOVID: What we know so far about the Omicron subvariant BA.2  Al Jazeera EnglishCovid-19: Omicron subvariant BA.2 is gaining ground. Should we worry?  Business StandardWhy Omicron cause mild infections? Experts say its properties aren't less severe but…  MintOmicron variant may not be ‘milder’ itself, US scientists caution  Deccan Herald