By Ludwig Burger (Reuters) -Sanofi said on Thursday it won European Union approval for its COVID-19 vaccine booster, jointly made with British partner GSK, after a drawn-out development effort that saw the pair fall behind now-dominant vaccine suppliers. The shot with the brand name VidPrevtyn Beta can be given to people who have already had a primary course of vaccination from other approved shots, the French drugmaker and the European Medicines Agency said in separate statements. Shipments are ready to be distributed to European countries under advance purchase agreements, Sanofi said. The c…