Please watch: "UNSWTV: Entertaining your curiosity"
[ Ссылка ]
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A world-first clinical study has proven the effectiveness of face masks in fighting flu.
![](https://i.ytimg.com/vi/Ze2gvaG7RZU/mqdefault.jpg)
Please watch: "UNSWTV: Entertaining your curiosity"
[ Ссылка ]
-~-~~-~~~-~~-~-
A world-first clinical study has proven the effectiveness of face masks in fighting flu.