Home Health Clinics Peddle Unproven Stem Cell Treatment for Long COVID Health Clinics Peddle Unproven Stem Cell Treatment for Long COVID By - October 26, 2023 30 0 FacebookTwitterPinterestWhatsApp Researchers identified 38 direct-to-consumer businesses selling purported stem cell therapies to prevent and treat the virus – 36 of which also claim to treat post-COVID syndrome.