Which covid vaccine prevents one from being infected? Which one prevents transmission?
The all do, to some extent, but none of them are 100% effective.
The Pfizer vaccine is the first mRNA vaccine ever, approved on an emergency use basis only since there is no long-term data on effectiveness or side effects. It actually modifies your mRNA, so that your own body produces a protein that resembles COVID. Then, your immune system creates antibodies against this protein your own body just made. These antibodies are also effective for COVID.
en.wikipedia.org
Moderna vaccine is similar.
Johnson & Johnson COVID vaccine is traditional. It uses a weakened form the COVID virus which does not cause severe symptoms.
If you get a good anti-body response, the virus cannot replicate enough in a person to make one contagious.
Same is generally true for people who are asymptomatic, like most children, who are more likely to have strong immune systems and also more likely to have been recently exposed to similar coronaviruses.
They say if you had a mild case of COVID, immunity lasts only about 1.5 months. A severe case, which I would say my wife and I had, probably gives you immunity for at least three months, maybe "a season" and possibly "years."
Similar immunity is provided by the vaccine. They think it will provide immunity for at least three months, probably "a season."
COVID is just like the flu. It mutates, and new strains arise. You can get it after you had it or have been vaccinated, after some time. There will likely need to be booster shots tuned to new strains. So really, those who are getting "the" vaccine are probably just getting their first.
In a new survey from the People's Vaccine Alliance, 66.2% of global disease experts said they believe that within one year, mutations of the coronavirus will render vaccines ineffective.
www.dailymail.co.uk
A study by researchers in the US and Singapore found that white blood cells called T-cells, which are produced after a vaccine or natural infection, appeared to work across all variants.
www.dailymail.co.uk
There are four other types of coronaviruses (prior to COVID-19) that most people acquire at some point in their lives. They also cause flu-like symptoms. SARS and MERS are two additional coronaviruses. They also cause flu-like symptoms.
There is nothing remarkable about COVID. It was a plandemic used to steal the election and reset America to help push a globalist and Socialist agenda.
