Recent evidence suggests that there might be a persistent reservoir of virus remnants that remains in the body in "Long COVID." These are not contagious, but may trigger chronic activation and exhaustion of the immune system. This is suggested by a study that shows that specially trained dogs are often able to “sniff out” people with Long COVID. Two trained "sniffer" dogs correctly picked out 51% of people with the condition, without incorrectly picking any of the sweat samples from people without.
Jacob Teitelbaum, M.D. is one of the world's leading integrative medical authorities on fibromyalgia and chronic fatigue. He is the lead author of eight research studies on their effective treatments, and has published numerous health & wellness books, including the bestseller on fibromyalgia From Fatigued to Fantastic! and The Fatigue and Fibromyalgia Solution. Dr. Teitelbaum is one of the most frequently quoted fibromyalgia experts in the world and appears often as a guest on news and talk shows nationwide including Good Morning America, The Dr. Oz Show, Oprah & Friends, CNN, and Fox News Health.