All COVID-19 vaccines approved, so far, are designed to teach the immune system to recognise and defend against the virus with a first dose, and then provide a second booster dose to reinforce that lesson.
Just think about this. It has been reported that about half of the frontline medical people who are dealing with this everyday have refused to take the vaccine. Ask your self what do they know that the lying MSM and vaccine pushers are not telling you. And if you still decide to be a lab rat at least do not force your kids to be one