Comments by "Deborah Freedman" (@deborahfreedman333) on "Hear former FDA commissioner’s message to those relying on Covid-19 immunity" video.

Nope. That is why the whole spike protein is not used.
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When one is infected, there is not determining which epitopes the immune system will use to trigger on. There have been many clinical trials, in many countries, and they all show that the vaccines produce longer lasting, broader immunity. Of course, those who recover from a Covid infection, and then get vaccinated, have the best immunity. (Also, there is a lot more to the immune system than just T cells and B cells. There are a whole battery of different white cells, with unique functions, not just lymphocytes. Don't discount cellular immunity. Humoral immunity is not the totality.)
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The influenza genome is remarkably different from coronavirus. Coronaviruses are single stranded positive sense RNA viruses. While influenza is also a single stranded RNA virus, its genome is broken into 7 or 8 subunits, which can reassort during coinfection. Most antigenic changes in influenza come from such reassortment, while change in coronavirus is due to mutation.
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@mr.romero4799 Except those hospitalized in Israel are the unvaccinated. It's so bad, due to jerks who don't get vaccinated, that all the ecmo machine are being utilized, and heart patients can't get them.
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@adamb7505 Except that is the opposite of what studies show.
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@nicolemiller8314 Wrong. You're confusing CT values with viral load. PCR only shows the presence of viral protein, be it from an active virus, or one the immune system has already rendered harmless. If you really want to see how much active virus a person is shedding, you need to do plaque assays, and those show much less viral shedding in vaccinated individuals.
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