IgorStrav and Dorrie -- thank you, that is what I had thought, but I wasn't absolutely sure.
Pheno -- I didn't hear a statement about those entitled to a free flu jab (ie over 65s) -- so that means over the coming week - over 65s, and those younger, with health conditions allowing them a free flu jab, may be told not to go out for 12 weeks? Is that correct? (Sorry to be so dense).