Posted in Web COVID-19: Delta variant poses twice the risk of … October 5, 2021 The Delta variant was reported in India at the end of 2020 and early studies found it could be up to 50% more transmissible than the Alpha variant, which was first identified in Kent. https://news.sky.com/story/covid-19-hospitalisation-risk-doubles-with-delta-variant-when-compared-to-alpha-variant-study-finds-12392137