Genetic risk factor found for Covid-19 smell and taste loss, researchers say Scientists are piecing together why some people lose their sense of smell after contracting Covid-19. YahooNews

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As Covid-19 cases have climbed, public health experts have urged people to dump their cloth masks in favor of higher-quality options and to test more frequently to curb the virus.

The Centers for Disease Control and Prevention on Friday updated its mask guidance to note that the disposable N95 or KN95 masks offer the "highest level of protection" against the virus.

For some, the added financial burden is an irritation — but still affordable. To others, the prospect of paying $1 for a single disposable mask or $24 for a test kit is an economic impossibility, raising the specter that the pandemic will continue to exacerbate inequalities.