看张图： COVID-19症状的轻重 与 VD具体指标关系。。

    https://patch.com/california/encinitas/first-data-published-covid-19-severity-vitamin-d-levels

   

         上图从左至右：    Critical 重---------------------------------》  Mild 轻
                                     不同颜色块：表示不同VD具体指标
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     Mild - presenting with mild clinical symptoms and no diagnosis of pneumonia（轻症）
    Ordinary - presenting with fever, respiratory symptoms, and a confirmed diagnosis of pneumonia （中等）
    Severe - cases with hypoxia and respiratory distress （重症）
    Critical - cases with respiratory failure requiring intensive care （非常严重---重症监护类）