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  1. ...we still have no idea how long the immunity lasts for people who it ... much of a benefit: - 70% of covid transmission occurs within ...the suspicion that it reduced infection rates and illness rates...

    4 Answers · Health · 28/03/2021

  2. ... odds of preventing infection from the COVID virus--and much better odds of it... of the vaccines offers 100% immunity .) Hospitalizations and deaths...

    3 Answers · Health · 25/03/2021

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