- Walmart will require workers to wear masks in stores in high-risk U.S. countiesCNBC
- Walmart mandates masks for all workers in some areasFox Business
- UCHealth doctor answers your questions about the latest CDC mask guidelinesDenver7 – The Denver Channel
- As Delta Variant Surges, Companies Consider Options On Masks And VaccinesNPR
- Walmart will require employees in some stores to wear masksCNN
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