
Fact check: What do we know about the coronavirus delta variant?
As India battles a deadly second wave, the UK is seeing COVID-19 cases rise despite vaccinations. Germany is also wary about another wave spurred by the delta variant.
What exactly is the delta variant?
The earliest documented COVID-19 case caused by the delta variant (B.1.617.2) was first found in the Indian state of Maharashtra back in October 2020, and has since then spread widely throughout India and across the world. The World Health Organization (WHO) labelled it a "variant of concern" (VOC) on May 11.
So far, the WHO has identified four VOC: alpha (B.1.1.7), beta (B.1.351), gamma (P.1) and delta.
The delta variant has multiple mutations. Scientists don't know the exact function of these mutations at this point in time but they are asso...