links for 2009-02-16

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  Flu: It's the Humidity. Absolutely -- Enserink 2009 (209): 3 -- ScienceNOW
  
  
  流感病毒在较低的绝对湿度下更易传播，缺乏褪黑激素和维生素D则会削弱免疫系统。躲在暖气充足的房间里也许不是好主意。
  
  
  (tags: health research)