RT @EricTopol
It's really striking how well trained scent dogs can detect Covid (and #LongCovid): a randomized controlled, triple-blinded validation trial and real life study at in airport. They need to get retrained for diff't variants https://globalhealth.bmj.com/lookup/doi/10.1136/bmjgh-2021-008024 @GlobalHealthBMJ @HelsinkiUniMed