A new variant of the coronavirus that causes Covid-19 — called B.1.1.529 — has been identified in South Africa, with officials there saying it’s highly concerning. Fears that a new strain could fuel outbreaks in many countries and pressure health systems, potentially evading vaccines and complicating efforts to reopen economies and borders sent a wave of risk aversion across global markets Friday. European stock indexes and crude oil futures plunged while Treasuries rallied. Governments around the world have started issuing bans on travelers from South Africa and nearby countries. Here’s what we know so far: 1. What’s different about this variant? Scientists say B.1.1.529 carries a high number of mutations in its spike protein , which plays a key role in the virus’ entry into cells in the body. It’s also what is targeted […]