Since the onset of the novel coronavirus, the world has already experienced three dominant variants of COVID-19 that caused widespread infections and fatalities. While the kappa variant was responsible for the first wave of the pandemic, the second wave proved to be fatal and was dominated by the Delta variant of the virus. With Omicron bringing in the third wave, the virus has been observed to have mutated into a more transmissible, but less fatal form.

from Times of India https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/wuhan-scientists-detect-neocov-coronavirus-among-bats-in-south-africa-does-it-pose-any-threat-to-humans-who-sheds-light/photostory/89199728.cms