In plasma samples, the team found that increased Covid-19 severity is associated with metabolite alterations, suggesting increased immune-related activity.
Perseverance rover was launched on July 30 last year and arrived at the red planet on February 18 after a 203-day journey traversing 472 million kilometres.
The findings, published in the journal Scientific Reports, further supports vaccination (and two doses), even for people who have contracted the virus previously.