Covid's Effects on the Brain Can Be Noxious

People sit on a lawn on the University of California, Berkeley campus.

Photographer: David Paul Morris/Bloomberg

Hi, it's Jason in sunny Melbourne. There was more news out this week on the longer-term effects of Covid-19, where the medical records of more than 1.25 million infected people showed that survivors remain at higher risk of some neuropsychiatric conditions for at least two years. But first, a look at other news...

Early in the pandemic we learned that Covid could lead to stroke, brain hemorrhage, psychosis, meningitis and a raft of central nervous system problems.

The findings were largely based on patients who died, so it was hard to know whether these conditions were triggered by hyper-inflammation and blood clots resulting from a severe illness or if the coronavirus was affecting the brain more specifically.