Iodine and selenium are linked through their effects on thyroid function. Both also have anti-viral properties relevant to SARS-CoV-2 infection. In the form of povidone-iodine solution, iodine is a virucidal agent that has been shown in vitro to kill the coronaviruses SARS-CoV and MERS-CoV, implicated in previous coronavirus epidemics.
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Rayman Margaret P (2020) studied this question.
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