Influenza, solar radiation and vitamin D.

نویسندگان

  • Johan Moan
  • Arne Dahlback
  • Liwei Ma
  • Asta Juzeniene
چکیده

The annual death numbers of influenza and pneumonia in Norway were studied for the time period 1980-2000. No direct relationships were found with the variations of the annual UVB fluences, probably due to the fact that these variations did not exceed 30%. However, there was a very pronounced seasonal variation of both influenza deaths and pneumonia deaths, the vast majority occurring during the winter. Vitamin D levels were also estimated from several publications. The data support the hypothesis that a high vitamin D level, as that found in the summer, acts in a protective manner with respect to influenza as well as pneumonia. The findings are discussed and compared with data from tropical and subtropical areas.

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عنوان ژورنال:
  • Dermato-endocrinology

دوره 1 6  شماره 

صفحات  -

تاریخ انتشار 2009