US government officials warned Nevada not to use Chinese Covid-19 tests
- Homeland security department, citing state department guidance, signalled concerns over test kits offered to Nevada’s state task force, which declined them
- United Arab Emirates had offered to donate US$20 million of kits, although Chinese firm BGI Group, which made them, denies knowledge of it

The documents illustrate how the US government actively – if quietly – tried to keep the state out of a project involving the Chinese firm BGI Group, which is the world’s largest genetic sequencing company and has expanded its reach during the coronavirus pandemic.
“I hope the Nevada Covid-19 task force leadership is aware of this so they can make an educated decision and know some of the US government’s concerns,” William Puff, a Department of Homeland Security regional attaché at the US embassy in Abu Dhabi, wrote in an email forwarded to Nevada officials.

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US President Donald Trump and first lady Melania Trump test positive for Covid-19
The warnings from Puff’s department and the state department led the office of Nevada Governor Steve Sisolak in April to direct a Nevada hospital not to use any of the donated 250,000 test kits as officials turned down an offered laboratory deal.