Why do antibodies fade after a COVID-19 infection, and will the same thing happen with vaccines?

By Steven Smith, Senior Lecturer in Biomedical Sciences, Brunel University London

The goal of the COVID-19 vaccines being rolled out worldwide is to stimulate our immune systems into creating a protective response against the coronavirus, particularly by generating antibodies. These antibodies then circulate in our blood until needed in the future, attacking and removing the coronavirus quickly from our bodies if we become infected.

The speed with which the scientific and medical communities have developed and tested these new vaccines has been extraordinary.…

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