Dogs that can detect volatile organic compounds that signal a COVID-19 infection would solve some challenges, but training enough dogs, validating their success, deploying them and keeping them safe constitute challenges that will not be easily addressed. Some research has shown dogs can distinguish positive samples with high accuracy, but sensitivity might depend on viral load, and it will be important to better understand how dogs are affected by the disease before they are widely deployed to screen people, Jane Hu writes.
COVID-19 detection dogs may not be ready for prime time
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