Covid vaccines give extra protection to previously infected, studies show

The studies underline the benefits of getting vaccinated regardless of whether someone has had Covid. Photograph: Brain light/Alamy

Covid-19 vaccines provide significant extra protection for people who have already been infected, according to two new studies.

The jabs have proven highly effective in protecting those who have never had Covid, but their effectiveness at preventing symptoms and severe outcomes in people who have previously been infected has, until recently, been less clear.