Trained dogs were able to sniff out Covid-19 infections with 94% accuracy

Dogs have smell receptors up to 10,000 times more powerful and accurate than humans. That allows certain trained dogs to sniff out diseases like cancer, malaria and viral infections.

Now, according to German researchers, trained dogs can sniff out coronavirus infections.

A new study, which was piloted by the University of Veterinary Medicine Hannover, the Hannover Medical School and the German Armed Forces found that, if properly trained, dogs were able to discriminate between human saliva samples infected with SARS-CoV-2 and non-infected samples with a 94% success rate overall. 

The hope is this method of detection could be one day be used in public areas such as airports, sporting events and other mass gatherings (in addition to laboratory testing) to help prevent future Covid-19 outbreaks, according to researchers.

To conduct the study, researchers trained eight dogs from Germany’s Armed Forces for one week. The trained dogs sniffed the saliva of more than 1,000 people that were either healthy or infected with the virus. Samples infected with Covid-19 were distributed at random and neither the dog handlers nor the researchers on site knew which ones were positive.

https://www.cnbc.com/2020/07/24/trained-dogs-sniffed-out-covid-19-infections-with-high-accuracy-study.html

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