I will stipulate that one virus particle is smaller than one hole in a mask. Can you stipulate that it doesn’t make the case against masks?
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Two possible reasons include high Vit D levels (preventative per Boston U study) & cross immunity (T cells). The CDC notes that 85% of people testing positive wore masks always/often while <4% never did. https://www.cdc.gov/mmwr/volumes/69/wr/pdfs/mm6936a5-H.pdf … (pg 4)
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