Retail giant Amazon says it will build its own coronavirus testing lab to monitor the health of its staff.
Cases of Covid-19 have been reported at more than 50 Amazon facilities across the US. Some have involved multiple infected workers.
The company said it had assembled a team to build its own “incremental testing capacity”.
Amazon staff have previously criticised the firm over its response to the coronavirus pandemic.
In March, Amazon fired a New York warehouse worker who organised a protest over a lack of safety precautions taken by the company.
Later, a memo from a meeting of Amazon executives was leaked. It said: “We should spend the first part of our response strongly laying out the case for why the organiser’s conduct was immoral, unacceptable, arguably illegal, in detail, and only then follow with our usual talking points about worker safety.”
Amazon blogged it had made more than 150 “significant process changes” in response to coronavirus.
“Our operations sites and grocery stores are distributing masks to employees and conducting employee temperature checks,” the company said.