A study published on Tuesday in PLoS Medicine suggests that boosting vitamin D levels with supplements would not help. The NIH team looked at blood samples collected between March and September, 2020. Pool testing allows scientists to test samples more efficiently, analyzing many samples at once. A patient might require a blood transfusion for surgery, cancer treatment, chronic illness, and other injuries. To investigate the issue, scientists at the National Institutes of Health (NIH) set out to study blood safety at the national level.
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