- NEW STUDY! The Metrodora Institute seeks participants to join the MELO Study to evaluate biomarkers in #MECFS & #LongCOVID. Participation is free & voluntary for adults 18+ in the US. No clinical diagnosis of ME/CFS or LongCOVID is required. Sign up here: ow.ly/kJYe50VkfuyMar 24, 2025 22:56