So 1.5m people are considered very vulnerable and have had letters saying they need to self-isolate for 12 weeks. I've seen the list of conditions on the website and I get that. But others are considered high risk groups, again there's a list on the site regarding which conditions this covers. I get that too. What I'm unsure about is what the difference is between how the two groups are expected to behave as I was under the impression that if you're in a high risk group, you should also be self-isolating for 12 weeks. Am I missing something here? Also, what if people have multiple conditions on the high risk list that make them even more vulnerable than someone with only one? Sorry for the stupid question, but can someone enlighten me please? Thanks in advance.