The second detected sub variant of Omicron, BA.2, which is at present mentioned to be wreaking havoc in lots of nations is named the stealth variant. Because the identify suggests, it’s stealth as a result of although it has many widespread mutations with its ancestor BA.1 Omicron variant, it doesn’t have a genetic deletion on the spike protein which makes it tough to be recognized in RT PCR methodology. Monitoring this variant is extra time consuming, therefore the identify “stealth”.
On February 22, 2022 the World Well being Organisation (WHO) for the primary time launched an official assertion on this variant. The WHO had mentioned that primarily based on accessible information of transmission, severity, reinfection, diagnostics, therapeutics and impacts of vaccines BA.2 can be thought-about as a variant of concern.