South Africa Covid-19 variant does not appear to be more transmissible, British health expert says From CNN’s Amy Cassidy British analysis does not suggest that the South African coronavirus variant is more transmissible than other variants, England’s deputy chief medical officer Jonathan Van-Tam said Monday. Van-Tam’s analysis was based on “early data on modelling” the variant, he said. He contrasted the South Africa variant with what he referred to as the Kent variant – referred to internationally as the UK variant – which he said does have a transmissibility advantage. sh...