People who have suffered Covid-19 could be living with a "silent killer" say experts. Researchers have discovered a reaction to the virus which has no symptoms but which can be slowly killing off a vital part of the brain.
This can put some people more at risk of brain disorders such as Parkinson's and Alzheimers. However they say as well as it revealing a potential future risk for those who have had the virus it could also offer a possible treatment.
The team, led by The University of Queensland, carried out tests on the brain's immune cells - "microglia". They discovered the virus activates the same inflammatory response in the brain as Parkinson’s disease.