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In 2015, the CDC conducted a randomized controlled trial to compare the efficacy of cloth masks with that of medical masks and controls (standard practice) among healthcare workers in Vietnam. Rates of infection were consistently higher among those in the cloth mask group than in the medical mask and control groups. This finding suggests that risk for infection was higher for those wearing cloth masks.

No effing duh. People touch their faces all damn day contributes to getting sick. Who would have ever thought?

In 2015, the CDC conducted a randomized controlled trial to compare the efficacy of cloth masks with that of medical masks and controls (standard practice) among healthcare workers in Vietnam. **Rates of infection were consistently higher among those in the cloth mask group** than in the medical mask and control groups. This finding suggests that risk for infection was higher for those wearing cloth masks. No effing duh. People touch their faces all damn day contributes to getting sick. Who would have ever thought?

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Here is an archive for the page:

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A cluster randomised trial of cloth masks compared with medical masks in healthcare workers
https://archive.vn/yzz4B

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And a Catbox for the pdf of the study:

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A cluster randomised trial of cloth masks compared with medical masks in healthcare workers (PDF)
https://files.catbox.moe/xuys1q.pdf

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