The problem many countries have to face is that there aren’t enough test kits to go around. But what if dogs could sniff out people who are infected and pinpoint them in a crowd?

The charity Medical Detection Dogs partnered with Durham University and the London School of Hygiene and Tropical Medicine (LSHTM) on a trial to see if dogs can sniff out COVID-19 patients.

The charity has trained dogs to spot malaria, cancer and Parkinson’s patients, as each disease has its own scent, BBC reports. LSHTM head of disease control Professor James Logan said that research proved dogs could detect malaria infections by odor with a level of accuracy “above the World Health Organization standards for a diagnostic.”

That doesn’t mean good boys will be as good as recognizing a particular smell for the novel coronavirus, of course. But if they are, they could be used in all sorts of cases to sniff out potential carriers within large groups of people. The dog test would then be confirmed by an actual COVID-19 test.

The dogs could be ready in six weeks, assuming the trial yields positive results. However, this method of testing will be of limited use, considering it can’t be scaled to meet current needs. But the dogs might be useful down the road to prevent the reemergence of COVID-19 and catch future outbreaks early.

The charity is studying ways to “safely catch the odor of the virus from patients,” according to its boss, Dr. Claire Guest. It’s not just safety for humans, but also from dogs. A 17-year-old Pomeranian tested positive in Hong Kong. Initially, it wasn’t clear whether the dog had the disease, but successive tests showed he developed antibodies for the infection. The dog was released back home after testing negative, but then died of old age.