My husband is immuno-compromised. He scours the internet for products that can protect him against COVID – from mouthwashes to supplements. Is there any evidence that any of these products work? (read article from NPR) https://www.npr.org/sections/goatsandsoda/2024/02/09/1230170175/coronavirus-faq-im-immunocompromised-will-pills-gargles-and-sprays-fend-off-covi
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