A sniffer dog was in a physical training in Baishan, northeast China's Jilin Province, June 22, 2020. (Xinhua/Xu Chang)
Later this week, four dogs of different breeds would start working at Helsinki Vantaa International Airport to sniff COVID-19 in people, according to Wise Nose, Finland Smell Detection Association, which is responsible for the training and deployment of the dogs.
HELSINKI, Sept. 22 (Xinhua) -- Four specially trained dogs demonstrated their ability to sniff COVID-19 in people even before showing symptoms during a press conference held at Helsinki Vantaa International Airport on Tuesday. The pilot project is scheduled to commence later this week.
The dogs showed the assembled journalists the whole process of how they sniff the samples and identify the suspected COVID-19 infections.
A sniffer dog and its trainer walks towards the baggage screening area in the International Arrival Hall of Changsha Huanghua International Airport in Changsha, central China's Hunan Province, Jan. 10, 2020. (Xinhua/Chen Sihan)
When passengers arrive at a COVID-19 dog sampling point at the airport, they would enter a small, screened area where they would be required to swab their skin with a wipe and drop it into a designated container as instructed. A dog and its handler would wait behind a wall where the dog would sniff the swabs.
The whole procedure would take about a minute. If the test result is positive, the passenger would be directed to the health information point for further instructions.
Later this week, four dogs called Kossi, Miina, ET and Valo -- all different breeds -- would start working at the airport, according to Wise Nose -- Finland Smell Detection Association, which is responsible for the training and deployment of the dogs.
A sniffer dog was in a training session in Baishan, northeast China's Jilin Province, June 22, 2020. (Xinhua/Xu Chang)
Participation in dog-assisted COVID-19 testing is currently voluntary. All passengers and airport staff can apply for testing, which is effortless and painless, Wise Nose told Xinhua.
In spring this year, the University of Helsinki had tested a group of trained sniffer dogs, and found them to be able to learn and work fast and even perform better than the current COVID-19 tests that are based on molecular techniques. The trained dogs had previously been employed to identify different types of cancer, said the university.
Dogs can also detect the novel coronavirus from a significantly smaller sample than the commonly used PCR (polymerase chain reaction) tests. In practice, therefore, a dog is expected to be able to identify COVID-19 infection in a human earlier than laboratory tests, Anna Hielm-Bjorkman, a veterinarian from the University of Helsinki, was quoted by the Finnish national broadcaster Yle as saying.
The trial at Helsinki Airport will last four months. Timo Aronkyto, deputy mayor of Vantaa, told the press that the dogs will definitely begin their "official activities" once the trial is deemed to be successful.
Employing dogs to identify COVID-19 is also of interest elsewhere in the world, noted Aronkyto, saying that they have received numerous inquiries from health authorities of various airports.
A sign leading to a COVID-19 medical screening center is seen at the international airport in Frankfurt, Germany, on Aug. 19, 2020. (Xinhua/Lu Yang)
As the world is in the midst of the COVID-19 pandemic, countries across the globe -- including UK, Germany, China, Russia, France and the U.S. -- are racing to find a vaccine. According to the website of the World Health Organization (WHO), as of Sept. 17, 182 COVID-19 candidate vaccines had been in development worldwide, with 36 already in clinical trials.■