Excellent - hopefully the second will be similar and without anything adverse. Sounds like most people are absolutely fine. A work colleague that also works at the local hospital had his last week, and he had to take a day off feeling unwell and severe headaches (he’s never usually ill) - but seemed to have settled down quickly, and nothing more than those symptoms.
Ms O can call and have hers anytime, as priority one, working in the overall surgical dept at the local hospital.
I’m not sure on the rest of the roll out, and I’m probably unlikely to be offered anything in the first half of this year.