Covid19 Clinical Trial
Official title:
Vitamin D3 Supplementation to Prevent Respiratory Tract Infections, Including Covid-19, in Hospital Workers: a Pragmatic Study
The Cooper vitamin D3 study is a randomized study investigating whether daily vitamin D3 supplementation can prevent respiratory tract infections, influenza-like illness and covid-19 in hospital workers.
Influenza-like illness and covid-19 were added to this summary because the protocol uses respiratory tract infections and influenza-like illness interchangeably. Influenza-like illness is more accurate. Protocol amendments: Protocol title was amended to include covid-19. Minimum age was changed from 52 to 18, expanding the sample size. Exclusion criteria re vitamin D intake was changed from >5000 to >=5000 IU. ;
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