Originally Posted by
pheoxs
Not necessarily. There are multiple different kinds of vaccines nowadays. One kind uses live virus' but in controlled (small) doses so that your body can fight it and create anti-bodies but its such a small dose you don't get sick. Others use de-activated virus' (which is what you mentioned) where your body still kills the virus but the virus can't replicate anyways. However there are also vaccines that don't contain the virus at all, instead they inject proteins that trigger similar responses for your body to build antibodies, these can be much safer because you can inject a lot more of the protein without having to worry about actually infecting the host. You have have herd the term 'spike protein' which is what this targets. This could lead to stronger antibodies than actually catching covid, this is kind is what is used for Hep B / HPV vaccines currently. Then there's also toxin based vaccines that inject a toxin that is similar to the virus that your body fights to build antibodies against it.
TL;DR: There's other kinds of vaccine technologies that can help develop stronger antibodies than even catching covid.