And interestingly, those on holiday seem to have brought it back at a much greater rate than business travelers. E.g. Frankfurt isn't an epicenter despite havin

And interestingly, those on holiday seem to have brought it back at a much greater rate than business travelers. E.g. Frankfurt isn't an epicenter despite having the largest airport and a lot of business travel, esp. to China. Many of the early outbreaks can be traced back to either Italy or Austria during Easter holidays. And that's where centers of infection remain.