“The Daily Mail reports that Carl Heneghan, Professor of Evidence-Based Medicine at Oxford University’s Nuffield Department of Primary Care, has expressed skepticism over the 70 percent figure. 

“I’ve been doing this job for 25 years and I can tell you can’t establish a quantifiable number in such a short time frame,” Heneghan said.”

https://www.zerohedge.com/covid-19/scientists-mps-ask-where-evidence-70-more-contagious-mutant-covid