I don't think 80% works for most vaccines. To provide protection...

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    I don't think 80% works for most vaccines.
    To provide protection for those who cannot
    be vaccinated I have seen something like 95% being
    quoted. This is for vaccines that provide actual
    immunity and block transmission. These new
    vaccines can't do that.

    Also, you need to be careful comparing Australia
    with Singapore. Australia has a very low population
    density, even in Sydney, compared to Singapore
    with one of the highest population densities in
    the world.
 
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