Top U.S. infectious disease expert Anthony Fauci said he was “cautiously optimistic” that by the end of the year there would be at least one vaccine for the coronavirus. Subscribe: Reuters brings you the latest business, finance and breaking news…

Sweden on Wednesday hit back at U.S. President Donald Trump’s criticism of the Swedish approach to fighting the spread of the coronavirus, saying he was wrong to claim authorities there were trying to achieve ‘herd immunity.’ Subscribe: Reuters brings you…