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Discussion
Different types of viruses mutate at different rates. Some are relatively static any take a long time to evolve. Some are constantly changing and spread so fast that every year the strain has changed around the world. Some are even faster and more elusive and we canβt even develop vaccines for them yet.
Because of this wild diversity in the types of viruses, different vaccines have different effects. Some protect you forever. Some for years. Some for months. Some give you immunity, some lessen symptoms.
The flu shot and now covid are really the only two Iβm aware of that fall into the βannualβ category, and no one is forcing me to take either, or even trying.
Vaccines are an evil scam. People are susceptible to believing in a magic spell of protection, and the pharma/medical complex gives them one - while handily allowing them to identify and persecute anyone who doesn't go along with the herd.
They're basically religion with a similar quality of evidence and, like religion, you get burned at the stake if you ask questions.