#NewsMedical Study finds long COVID leaves a distinct immune signature in the bloodhttps://www.news-medical.net/news/20260414/Study-finds-long-COVID-leaves-a-distinct-immune-signature-in-the-blood.aspx#Covid #Covid19 #SarsCov2 #LongCovid #biomarker #inflamation #healthy #recovered #vaccinated #reinfection