[fChk]

Bottom line for the vaccine is the vaccine is just to set the body up to fight the Corona Virus - the infection is still there and there is a chance it can be passed on.

Indeed that's what a vaccine is supposed to do. It's supposed to help a human-being to be sensitized to a potential encounter with a pathogen for which we have a potent antigen that will help generates the adhoc Antibodies ( AB ) and hopefully the adhoc T4-Cells which will make the organism react much more quickly and efficiently when it detect those antigens circulating for a second time inside it.

For the SARS-CoV-2 all the current vaccines are based on the virus spike protein; meaning that in this case the virus spike protein is the antigen that will be flagged by the immune system and that will trigger a cascade of (complex) immune response that will end up killing any cell that has those spike protein on their membrane.

The last sentence of the quote (in red) may only be true if a vaccine is not effective (didn't generate a good response in that person) or during a very short period of time before the body completely eliminates the virus from within for a person adequately immunized against the virus; ie someone for which the vaccine has helped generating a strong immune response (meaning a decent among of AB and adequate T4-cells.)

My major point here is that vaccination is a kind of a 'voodoo science' because, although we know a great deal of things on our immune system processes nowadays at the cellular and molecular levels, we still lack a lot, especially at the holistic(/organism) level. Things that require multi-disciplinary competence that will explain why certain persons react adequately(/optimal response) to vaccine while others don't(/sub-optimal response) and while others over-react(/aggressive response) leading to adverse reactions leading to auto-immune diseases.. etc...


PS: Although my main field of expertise isn't in the Immunology discipline but I have studied it long enough at the graduate level to have a sound understanding of what's what, whatever is out there of publically available information.