The blood holds clues to understanding long COVID
The search for biomarkers could eventually lead scientists to tests and treatments
![Illustration of a woman balancing on green columns that appear to be wobbling. Blown-up icons of coronavirus fill the spaces between the columns.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2024/02/021424_mr_long-covid-biomarkers_feat.jpg?fit=1030%2C580&ssl=1)
Though people with long COVID can struggle with all sorts of different symptoms, scientists are now getting a better idea of the varied factors that may underlie the disease.
Klaus Vedfelt/DigitalVision/Getty Images Plus