Dogs can sniff out COVID-19 with 94 percent accuracy, study says

[Ms. Toad]

7. From the article:

The pooches were able to make the potentially life-saving distinction because the virus likely “completely changes” an infected person’s internal chemistry — giving their saliva a different scent, said one researcher involved.

“We think that the dogs are able to detect a specific smell of the metabolic changes that occur in those patients,” Maren von Koeckritz-Blickwede, a professor at the university who conducted the study, said in a Youtube video about the experiment.

Link to the study https://bmcinfectdis.biomedcentral.com/articles/10.1186/s12879-020-05281-3