Dogs have a sharp sense of smell comparison to humans. They have almost 300 million olfactories in their nose where humans have only 6 million receptors. A dog has a separated brain part that is devoted to analyzing smells is, proportionally speaking 40 times greater than humans. Also, the dog’s breach called a sniffer dog trained to detect diseases such as malaria, cancer, and even viral infections in humans.
Now, a team of German researchers at the University of Veterinary Medicine Hanover, the German Armed Forces, and the Hannover Medical School revealed that dog can easily discriminate between non-infected samples with a 94 percent overall success rate and human saliva samples infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
So, to see the Coronavirus pandemic across the world the team trained 8 sniffer dogs to sniff out SARS-CoV-2-infected samples for one week.
The trained dog smell saliva around more than 1,000 people that were either healthy or infected with the virus. The samples of coronavirus disease patients were distributed at random. According to this study, researchers see that the dogs identify 94 percent correct indications where 792 correct rejections of negative, 33 incorrect indications of negative or incorrect rejections of 30 positive sample presentations.
The researchers hugely believe that dogs can detect COVID infected patients because those who get infected have changes in their metabolic processes.
A professor at the university, Maren von Koeckritz-Blickwede said that “We think that the dogs can detect a specific smell of the metabolic changes that occur in those patients,”
The research hopes that this method helps us to detect fastly during this Coronavirus peak. Also, it helps control the virus spread and reduce the no. of cases and we use in those countries where the COVID test is on the limited number, detection dogs could be used for fast detection at low cost.
Already, Chile made a debut to the use of detection dogs. In England, around 6 dogs have been trained Medical Detection Dogs in Milton Keynes to sniff out and detect the presence of the virus in COVID patients. The charity’s co-founder and chief executive Dr Claire Guest, told that these dogs have earlier trained to detect diseases, such as cancer, Parkinson’s disease, and malaria.
now, these dogs help us to inspect the Coronavirus infected person.
The team hopes that when they train dogs to find out the virus, they can help contain its spread around the world which has now topped 16.66 million across 188 countries and territories.