After a slow start, the flu season has taken off. “There was a substantial uptick between Christmas and New Year’s,” said William Schaffner, an infectious disease specialist at Vanderbilt University Medical Center in Nashville, Tenn. “We don’t anticipate last year’s doozy of a year will be repeated, but there is plenty of illness out there.”In...

Source: Wall Street Journal January 04, 2019 12:03 UTC