Omicron: What do we know about the ‘stealth variant’?
A new version of the Omicron variant of SARS-CoV-2, known as BA.2, has emerged. Although experts are unsure about its effects, they know that it is spreading quickly and has 20 mutations in the area that most COVID-19 vaccines target. Scientists first identified the BA.2 subvariant of Omicron in India and South Africa in late December 2021. […]
