Early (i.e. existing) Covid vaccines are NON-STERILIZING, unlike almost every vaccine given to kids. There are sterilizing Covid vaccines in development, e,g. delivered nasally directly to the upper respiratory tract, but none have yet reached the market.
https://market-ticker.org/akcs-www?post=243127
> To be sterilizing a vaccine must prevent infection. Since you never get infected you never replicate the virus and thus do not shed it. If you do not shed it the potential path of the viral life-cycle for that particular infection ends with you and thus you cannot pass on or cause a mutation. You are sterile against that disease; from the point of view of the virus you are a lifeless rock. Among commonly-used sterilizing vaccines are MMR (measles, mumps and rubella), Varicella (chicken pox), OPV (oral polio) and others. The only time that such a vaccine fails is when you do not build immunity (such as due to immune compromise.) This is extremely rare and the protection from such vaccines tends to be either decades-long or lifetime.
> A vaccine that is not sterilizing permits the virus to infect you and replicate and as a result you can infect others. Technically it is not a vaccine at all (which by definition prevents infection); it is a prophylactic therapy. Such a "vaccine" instead acts to reduce or eliminate symptomatic disease. You don't know you're sick and you don't get sick. You don't go to the hospital and you don't die. Unfortunately since you don't know you're sick but are infected and the virus is both replicating in you and shedding you are more-likely to spread the infection to others. All of the current Covid jabs are in this category and so is, for that matter IPV (injected polio vaccine -- the original Salk discovery.)
> During the original vaccine trials in the summer and fall of 2020 they deliberately did not test any of the recipients for asymptomatic infections. Only a person who developed a significant illness was tested. This has continued post roll-out with the CDC specifying that a close contact of a known case who was vaccinated did not need to quarantine or be tested until and unless they became symptomatic. They knew damn well, in other words, that the jabs were not sterilizing but did not want that data up for public debate because then those who have read history would be likely to make the connection to the present day and thus they did their level best to hide it. That has now blown up in their face with it being conclusively known that jabbed people in fact not only get infected but spread the virus to others.
> ... natural infection with Covid-19 is sterilizing. Being infected and recovering conserves the nasal and respiratory mucosal response which is where the virus enters the body.