Abstract: Introduction Vitamin D is important in innate and adaptive immunity. Deficiency is associated with susceptibility to tuberculosis(TB) and viral respiratory tract infections. Prevalence increases in patients of Black and Asian ethnicity, high BMI, smokers and the elderly. Vitamin D deficiency may have a role in acquisition and severity of COVID-19 infection. Objective To investigate vitamin D status in patients admitted to hospital and critical care with COVID-19, and to compare vitamin D levels to patients with TB infection. Methods Vitamin D l...
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Topics: 
Internal medicine
Gastroenterology