Most of the responses to your question that I have read are factually incorrect in some way. Efficacy/effectiveness is up to each study to define. Generally yo

Most of the responses to your question that I have read are factually incorrect in some way. Efficacy/effectiveness is up to each study to define. Generally you should assume they are measuring symptoms of infections that go beyond the upper respiratory tract. This is because the vaccines provide little protection against an upper respiratory tract infection but instead are very effective at preventing it from progressing further into a more severe infection. This is referred to as non-sterilizing immunity: it is probably the most important concept for everyone to understand about the vaccines. I am seeing a lot of comments here claim that vaccines are 100% effective at preventing death or severe infection where severe is generally defined as hospitalization. Nothing is 100% effective, and particularly not vaccines for those whose immune system does not respond properly. Death in particular is generally not an endpoint that can be compared in a statistically significant way in these studies. [1] I will still be getting the first imperfect vaccine I am allowed to at the first chance I get. When I needed to get an appointment for my Mom I started writing a user script to help with that. [2] [1] https://dalewharrison.substack.com/p/vaccine-boosterism https://dalewharrison.substack.com/p/vaccine-boosterism [2] https://gist.github.com/gregwebs/265e0ef6b1a3051377cfc4d66acecf81 https://gist.github.com/gregwebs/265e0ef6b1a3051377cfc4d66ac...