While some COVID-19 patients infected with the SARS-CoV-2 virus exhibit no symptoms at all and others fully recover within a few weeks, roughly ten to twenty percent of patients develop protracted COVID, a chronic illness that scientists and medical professionals are currently learning about. Long COVID symptoms are numerous and might differ greatly from patient to patient. Researchers have now discovered proteins in blood plasma that may be utilised to understand long COVID and develop diagnostic methods. The Journal of Translational Medicine has published a report on the findings.SEM image that has been coloured of a cell that was obtained from a patient sample and that was infected with Omicron strain SARS-CoV-2 virus particles (purple).