“Spikevax uses a substance called messenger ribonucleic acid (mRNA) to carry instructions that cells in the body can use to make the spike protein that is also on the virus.
“The cells then make antibodies against the spike protein to help fight off the virus. This will help to protect you against Covid.”
The latest on the coronavirus pandemic
Around 36,546,583 people have now had a Covid booster as of January 17, 2022.
Meanwhile, the number of people testing positive for coronavirus has seen a sharp decline.