How Can Dogs Smell COVID-19? - Guinness World Records

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The ability for dogs to detect certain diseases or conditions using their incredible sense of smell – between 10,000 and 100,000 times more acute than a human’s – that might otherwise go unnoticed has been gaining traction for around the last 30 years. Dogs have around 300 million olfactory receptors vs about 6 million in humans.

Formally established as a charity in 2008, Medical Detection Dogs (UK), based in Milton Keynes, Buckinghamshire, UK, has trained dogs to use their powerful sense of smell to sniff out 28 different types of disease/disorder or a change in a disease/disorder status that could lead to a health emergency. As of February 2022, these include: Addison’s disease (adrenal insufficiency), anaphylaxis, asthma, blood glucose (e.g., diabetes), congenital central hypoventilation syndrome (CCHS), complicated migraines, cortisol, drop attacks, epilepsy, heart conditions, hemiplaegic migraines, idiopathic pancreatitis, post-traumatic stress disorder (PTSD), narcolepsy, non-epileptic attack disorder (NEAD), nut allergy, postural tachycardia syndrome (POTS), syncopy, bladder cancer, prostate cancer, colo-rectal cancer, breast cancer, malaria, Parkinson’s, COVID-19, Pseudomonas bacteria, E. coli bacteria and canine cancer.


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