The detection dog "Finn" sniffs around the cone shaped scent stands to find out which one of them contains the COVID-19 odour inside the training room at Vancouver General Hospital in Vancouver, British Columbia, Canada, on Aug. 18, 2021. Canada's first COVID-19 detection dogs are being trained for 6 months and ready to be deployed for work in next few weeks. (Photo by Liang Sen/Xinhua)
The detection dog "Finn" puts its head into the cone shaped scent stands to look for COVID-19 odour inside the training room at Vancouver General Hospital in Vancouver, British Columbia, Canada, on Aug. 18, 2021. Canada's first COVID-19 detection dogs are being trained for 6 months and ready to be deployed for work in next few weeks. (Photo by Liang Sen/Xinhua)
Canine detection specialists prepare to train COVID-19 detection dog "Finn" inside the training room at Vancouver General Hospital in Vancouver, British Columbia, Canada, on Aug. 18, 2021. Canada's first COVID-19 detection dogs are being trained for 6 months and ready to be deployed for work in next few weeks. (Photo by Liang Sen/Xinhua)
The detection dog "Micro" puts its head into the cone shaped scent stand to look for COVID-19 odour inside the training room at Vancouver General Hospital in Vancouver, British Columbia, Canada, on Aug. 18, 2021. Canada's first COVID-19 detection dogs are being trained for 6 months and ready to be deployed for work in next few weeks. (Photo by Liang Sen/Xinhua)
The detection dog "Finn" sniffs around the cone shaped scent stands to find out which one of them contains the COVID-19 odour inside the training room at Vancouver General Hospital in Vancouver, British Columbia, Canada, on Aug. 18, 2021. Canada's first COVID-19 detection dogs are being trained for 6 months and ready to be deployed for work in next few weeks. (Photo by Liang Sen/Xinhua)
