Britain and Brussels embark on a fresh round of trade talks Monday that downbeat EU officials say show little promise of advancing amid the added turmoil of the coronavirus outbreak. The UK left the European Union on January 31 and both sides have until the end of the year to forge a new basis for relations, barring an optional extension that London refuses to contemplate. The new talks round will begin with a virtual head-to-head between Michel Barnier, the EU’s chief negotiator, and his UK counterpart, David Frost — both of whom have recovered from a bout with the virus. That will be followed by videoconferences involving hundreds of officials throughout the week. The previous round of UK-EU talks broke up on April 24 with little or no progress. European officials accuse Britain of focus...