South Africa’s latest surge is a possible preview of the pandemic’s next chapter. The spread of two newly discovered subvariants has doctors watching closely. Author: ALEXANDRA E. PETRI Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Advertisements{ "slotId": "6845006044", "unitType": "responsive", "resize": "auto" }