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Time to wear better mask as Covid variants spread, experts say

Mask.

A KN95 mask. Experts say it's time to consider using a medical-grade respirator, or wearing a surgical and cloth mask together. PHOTO | AFP

By  AFP

Washington

As new, more transmissible variants of the coronavirus spread, experts say it is time to consider using a medical-grade respirator, or wearing a surgical and cloth mask together.

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