Scientists have taught bees to smell the coronavirus. They can identify a case within seconds.
▻https://www.businessinsider.fr/us/scientists-taught-bees-to-smell-covid-19-infections-2021-5
Scientists in the Netherlands have trained bees to identify COVID-19 through their sense of smell, according to a press release from Wageningen University.
▻https://www.wur.nl/en/news-wur/Show/Training-bees-to-smell-the-coronavirus.htm