交换一天中文字幕-原标题：New study suggests that dogs can be trained to detect COVID-19 by sniffing armpits新标题：Unleashing the Power of Canine Instinct Dogs Trained to Sniff Out COVID-19

Unleashing the Power of Canine Instinct: Dogs Trained to Sniff Out COVID-19

As the world continues to grapple with the COVID-19 pandemic, scientists are exploring all possible ways to detect the virus. One surprising method that has been gaining attention recently is using dogs to sniff out COVID-19.

A new study suggests that dogs can be trained to detect COVID-19 by sniffing armpits. The study, conducted by researchers in France, found that dogs were able to detect positive COVID-19 cases with 97% accuracy. The dogs were trained by being presented with cotton pads that had been worn by people who tested positive for COVID-19. The dogs were able to distinguish between positive and negative samples with remarkable accuracy.

This isn't the first time that dogs have been used for disease detection. In fact, dogs have a long history of being used in various fields for their incredible sense of smell. Dogs have been trained to detect everything from drugs to explosives to cancer.

So, what makes dogs such effective detectors? It all comes down to their incredible sense of smell. Dogs have up to 300 million olfactory receptors in their noses, compared to our measly 6 million. This means that dogs can detect scents that are far beyond the limits of human perception.

Dogs are able to detect the odour caused by the metabolic changes in a person with COVID-19. These changes cause a distinct smell that dogs are able to pick up. By training dogs to recognise this particular scent, researchers believe that they can be used as a rapid and effective screening tool for the virus.

The use of dogs for COVID-19 detection is still in the experimental stages, but there are already a few successful pilot programs underway. In Dubai, for instance, police are using dogs to detect COVID-19 at airports. The police have set up a special unit that consists of a team of sniffer dogs, along with their handlers. The dogs are trained to detect the odour of COVID-19 in the sweat of arriving passengers. If a dog detects a positive case, the passenger is immediately sent for a PCR test to confirm the diagnosis.

The use of dogs for COVID-19 detection has many advantages over current testing methods. For one, dogs can detect the virus much faster than PCR tests, which can take several hours to yield results. Additionally, dogs can be used in large-scale screening programs, making it easier to identify positive cases in high-risk settings such as airports, hospitals, and nursing homes.

However, there are also some concerns about the use of dogs for COVID-19 detection. One concern is the potential cost involved. Training dogs can be an expensive and time-consuming process, and it may not be feasible for every country or institution to have their own detection dogs. Another concern is the potential for human error. While dogs are highly accurate in detecting scents, there is always a risk of false positives or false negatives, especially if the dogs are not properly trained or if their handlers are not experienced.

Despite these concerns, the use of dogs for COVID-19 detection has the potential to be a game-changer in the fight against the pandemic. With their incredible sense of smell and remarkable ability to detect even the faintest of odours, dogs could be the key to identifying positive cases quickly and effectively, halting the spread of the virus and saving countless lives in the process.