“…This suggests that proper supplementation of vitamin D and vitamin E may enhance our resistance to SARS-CoV-2. Patients with primary basic diseases, especially those with chronic diseases such as hypertension, diabetes, coronary heart disease and tumor, are more susceptible to SARS-CoV-2 and their risk of poor prognosis will increase significantly after infection, because they have low systemic immunity as a result of the disease itself and treatments [71]. Therefore, it is particularly important to enhance self-resistance.…”