Finnish Study: Masking kids 10-12 effective or not?

In this video I share the results of a Finnish study that looked at whether masking kids between the ages of 10-12 was effective in reducing rates of Sars Cov-2 transmission. Here is a link to the actual pre-print of the study https://www.medrxiv.org/content/10.1101/2022.04.04.22272833v1
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