Moderna to test booster shot that targets South African coronavirus variant https://www.nbcnews.com/science/sci...er-shot-targets-south-african-variant-rcna310 "The development is part of the company's efforts to counter strains of the virus that are already spreading rapidly around the world. The drugmaker Moderna is set to begin testing a new version of its Covid-19 vaccine that was specifically designed to target an emerging variant of the coronavirus that was first reported in South Africa. "Moderna is committed to making as many updates to our vaccine as necessary until the pandemic is under control," Moderna CEO Stéphane Bancel said in a statement. There is no evidence yet to suggest that the coronavirus has mutated in a way that makes it able to evade the existing vaccines, but the prospect remains a serious concern for scientists around the world. Early studies found that Moderna's vaccine was less protective against the South African variant, but the company said the observed level of neutralizing antibodies — which can bind to viruses and block them from getting into cells — stayed above protective levels."