Jim Robertson Bit Quotations

Vaccines aren't wonderfully stable. You'll get 12 months out of it in the correct conditions, maybe 18 months, but it doesn't go on forever. So again, it's a bit of a gamble to stockpile a few million doses. If it's not used, it's just going to go off.

There is a huge question mark. If there is, if people had a tiny bit of immunity, the vaccine would boost it.