Study suggests trained dogs can sniff out coronavirus with up to 94% accuracy

Dogs possess an extraordinary sense of smell, with up to 350 million sensory receptors compared to humans' 5 million. This allows them to detect substances in incredibly small quantities, such as a teaspoon of sugar in two Olympic-sized swimming pools. Their remarkable olfactory abilities make them valuable in detecting human diseases by odor. While not a replacement for PCR or lateral flow tests, dogs can complement these methods in environments like airports and workplaces, screening up to 300 people per hour.

How many sensory receptors do dogs have compared to humans?

• 5 million for dogs and 350 million for humans

• 500 million for dogs and 50 million for humans

• 350 million for dogs and 5 million for humans

• 50 million for dogs and 500 million for humans

What is the equivalent volume of water in which a dog can detect a teaspoon of sugar?

• A small pond

• A large lake

• Two Olympic-sized swimming pools

• A single cup of water

What makes dogs particularly remarkable in detecting human diseases?

• Their ability to see in the dark

• Their acute sense of hearing

• Their ability to detect diseases by odor

• Their fast running speed

In which environments could dogs be used to complement existing testing methods?

• In small family gatherings

• At airports and sporting events

• In private homes

• In remote rural areas

How many people can a dog screen per hour in rapid screening environments?

• 100 to 150 people

• 50 to 100 people

• 150 to 200 people

• 250 to 300 people