I HAD MY SHOTS, BUT NOW I GUESS I HAVE TO DEPEND ON THE VITAMIN D: Flu outbreak spreading rapidly in U.S. “Health experts say part of the problem is that this year’s vaccine doesn’t provide protection for H3N2, the strain of the influenza that’s currently making the rounds. This year’s vaccine does help protect against H1N1 and one or two strains of influenza B. Earlier this month the CDC issued a health advisory stating that only 48 percent of flu virus samples taken through last month were closely related to this year’s vaccine.”