I think there's gonna be a tidal wave after round 4 of magic vax imo (which was supposed to be out round about now). Anyone I know that took the 3 had a bad reaction to the last one but brushed it off, and now the sun is out immune systems are better. If people can scrape through until winter months it'll be harder to detect instant issues. https://www.standard.co.uk/news/uk/nhs-spring-booster-covid-jab-fourth-vaccine-how-to-book-b989535.html right on time haha