> It bolsters your body’s ever-growing defense system. That's a lie. Repeated boosting with an antigenic substance does not boost your defense system, it weakens it by resulting in the conversion of IgG1-3 antibodies into IgG4 antibodies that suppress immune response. They fucking use this to treat severe allergies or for transplant patients to suppress the immune response. > Each additional shot helps. There is evidence that each vaccine or infection, especially in the first few months after receipt, provides added protection against critical illness and hospitalization. “Through multiple immunizations, your repertoire of immune cells expands,” said Jeremy Kamil, a virologist at Louisiana State University Health Sciences Center Shreveport, who studies variant mutations. “Your body learns to make these very potent antibodies that are active against multiple strains of the virus, so it becomes harder for the virus to wiggle away from them. … You’re much better defended.” Jeremy is an idiot. Immunization using a "vaccine", particularly the mRNA vaccines, produces a narrow immunity that targets only the spike protein not the broad immunity gained from natural infection, repeated immunization, as mentioned earlier, does not create "very potent" antibodies, it creates immune suppressing antibodies. Use of narrowly targeted "vaccines" narrows the protection against infection and primes the immune system to respond in a way that may no longer be effective (original antigenic sin) or to illicit an immune over-reaction (antibody dependent enhancement). A systemic vaccine against a respiratory infection cannot prevent infection or transmission, as the infection occurs in the respiratory mucosa. This is controlled by a largely separate immune system using IgA antibodies which are generated from interaction with the infectious agent either in the respiratory mucosa or through the digestive system (when you swallow phlegm) via the Peyer's patches. As for the effectiveness of the jabs or boosters, this is shown to be false in studies like the two Cleveland Clinic studies that showed the "protection" from COVID infection decreased over time and also further decreased with additional jabs. More jabs makes you more susceptible to infection. If you want protection against a respiratory infection, your innate immune system is key. Making sure you have sufficient Vitamin D levels is key to this as well as a healthy bacterial flora in various systems, particularly gut flora. Almost all "main stream" medicine acts against the maintenance of a healthy immune system. There is some interesting work being done on the use of killed mycobacterial oral immunization in order to stimulate the innate immune system. As you age, your innate immune system weakens (that's why old people die from infectious diseases). Stimulating your immune system with killed mycobacteria can rejuvenate it back to a level that is almost as good as that of a young person. Do not expect this sort of cheap and safe treatment to be available any time soon though, trillions of dollars of pharma profits are at risk if something like that became wide spread.