SARAH PALLETT (Labour—Ilam): Thank you, Madam Speaker. I've listened with great interest to the words of my colleagues, and I'd just like to share some information and thoughts from my perspective. What we do know is that a two-dose primary course and a booster provides very good and lasting protection for most people, but the latest advice we're hearing is that an additional booster is important for the most vulnerable. Vaccination with booster doses now that the prevalent variant is Omicron don't seem to be quite as good as we would like at preventing infection and transmission, but they're extremely good at preventing serious illness, hospitalisation, and death.