Has anyone been hearing/reading about the recent studied done on vitamin D deficiencies?

There has been a lot about this in the news lately. They are finding a lot of it, especially in women, a lot of them in New England. My doctor tested me for it about a month ago after I complained about being sick so often lately. (He said the stress from my job was more than likely causing most of this, but tested me for Vitamin D deficiency.)

It turned out that my Vitamin D was low and he has me taking that now too. One more pill. But, since he told me of this, I have been hearing a lot in the news about recent studies. I guess there is something to this.