15 December 2020, 12:21 am EST By A new proof-of-concept study shows that highly trained dogs can sniff off coronavirus on human perspiration from 177 patients from a hospital in Beirut, Lebanon as well as four hospitals in Paris, France. If this study works well, then dogs could not only protect humans from bombs or any drugs, but also from this deadly virus. New study shows dogs can sniff off coronavirus from human perspiration According to a National Interest article, six dogs were used on this study and they all underwent weeks of training to pick up specific smell of patients who tested positive for COVID-19. Surprisingly, the research, which was published in the PLOS One journal, turned out highly positive results from at least 76% up to 100% success rate for some dogs.