 I'd love to know how you explain to people how vaccines work. Yeah, the best analogy I've used over the years is it's like, you know, the bad guy arrives in town and the immune system puts up wanted posters, right? So when the real bad guy comes back and the next time he's recognized more quickly, I suppose. And in essence, what vaccines do is they're parts of, in this case, COVID-19 of the virus, and then the immune system can recognize that part and then get trained to recognize that when the real bad guy arrives with those parts as well. And you make loads of antibodies to the spike, your T cells come out, they're a very important part of the immune system as well. And they come out in numbers. And then when the virus, the real virus infects you, those antibodies and T cells are there, then to fight the virus. A lot of boot camp sometimes. So yeah, there's two very important cell types, B cells and T cells. And what the vaccine does is it brings them out in numbers from the fortress if you will, you know. And then when you get challenged with the virus then, you have loads of troops there ready to fight the virus and they stop you getting infected.