New research offers clues to what causes long COVID — fuelling hope for eventual treatments
For several years, scientists have tried to untangle one of COVID-19's persistent puzzles: Why do some people, even after mild infections, go on to develop lasting health issues? Now, fresh clues are emerging.
![New research offers clues to what causes long COVID — fuelling hope for eventual treatments](https://i.cbc.ca/1.7002069.1697749200!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/long-covid-microscope.jpg)
![A transmission electron micrograph shows SARS-CoV-2 virus particles isolated from a patient. Recently, several research teams have honed in on potential hallmarks of long COVID, formally known as post-COVID-19 condition, offering insight into the possible mechanisms at play. Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient.](https://i.cbc.ca/1.7002069.1697749200!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/long-covid-microscope.jpg)
For several years, scientists have tried to untangle one of COVID-19's persistent puzzles: Why do some people, even after mild infections, go on to develop lasting health issues? Now, fresh clues are emerging.