他们是担心医疗人员没的用,不是没效果!加拿大官方网站还是说没有病没必要戴。 问题是,我一个中国朋友指出一点:没症状的人也可能会传染!例如一个没症状的传染者跟一群人聚集,一个群人就感染了。
本地大概很难买到,我在阿里巴巴网购,速递!
There is no evidence on the usefulness of face masks worn by healthy/asymptomatic persons as a mitigation measure, therefore it is not recommended.
Footnote v Globally masks are in short supply and the current demand for masks cannot be met; therefore, appropriate use of face masks should be encouraged.
Footnote