The 31-year-old woman from Spain became infected with the Delta variant followed by the Omicron variant of the virus in under three weeks

Breakthrough infections are occurring with other variants in those who have had Covid previously and those who are vaccinated

Department of Health figures show some reinfections barely three months apart, with the highest number of reinfections in January

Researchers in the US have reported the country’s first confirmed case of coronavirus reinfection.

Researchers said a “young and healthy patient" had a second episode of coronavirus "4.5 months after the first episode”