Viral pneumonia is a pneumonia caused by a virus. Viruses are one of the two major causes of pneumonia, the other being bacteria; less common causes are fungi and parasites. Viruses are the most common cause of pneumonia in children, while in adults bacteria are a more common cause.iruses are one of the two major causes of pneumonia, the other being bacteria; less common causes are fungi and parasites. Viruses are the most common cause of pneumonia in children, while in adults bacteria are a more common cause.
In the United States, however, the average daily magnesium intake is about 320 mg for men and about 230 mg for women, or 24% and 28%, respectively, below the RDAs. A recent study showed that elderly American men and women consume only about 225 and 166 mg/day of magnesium, respectively, or 46% and 48% below the RDAs.or adults aged 31 or older, the Food and Nutrition Board of the Institute of Medicine has set the Recommended Dietary Allowance (RDA) for magnesium at 420 mg/day for men and 320 mg/day for women (for adults aged 19â30, the figures are 400 and 310, respectively).
Here's how much calcium and vitamin D you need every day, according to the Institute of Medicine. Calcium. 1  Children 1-3 years old: 700 milligrams (mg). 2  Children 4-8 years old: 1,000 mg. 3  Children 9-18 years old: 1,300 mg. 4  Adults 19-50: 1,000 mg. 5  Women 51 to 70: 1,200 mg. 6  Men 51 to 70: 1,000 mg.