17 May 2021 / 15:00 H. Pix for representational purpose only/BERNAMA BANGKOK: The one-year-two-month-old sniffer dog, Bravo is seen wagging its tail as it walked into a room at the Small Animal Hospital Chulalongkorn University where it sniffed at six canisters. The Labrador Retriever sat down in front of one canister while an officer in Personal Protective Equipment (PPE) suit marked the canister. Bravo had detected the perspiration scent of a COVID-19 patient. Bravo is one of the six Labrador Retriever trained by Chulalongkorn University’s Faculty of Veterinary Science to detect COVID-19 patients, both symptomatic and asymptomatic, with an accuracy of 94.8 per cent.