The immunity you get after being vaccinated for COVID-19 looks to be better than the immunity you get after recovering from the infection. On average, the antibody levels are 10 times higher post-vaccines than post-recovery.
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Plus, vaccines lead to you having antibodies only against the virus’ spike protein, the important bit for giving you protection.
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When you get the infection, your immune system develops antibodies against the spike protein & also against other parts of the virus like envelope protein and some of those extra antibodies appear to contribute to some people getting more unwell when they have COVID-19.
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Other infections where the vaccine gives much better protection than the illness itself include tetanus, diphtheria and Haemophilus influenzae type B (Hib).
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