#RFB-11000545Reading: Fill in the BlanksAcademic,CoreMedium
COVID-19 Vaccines
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COVID-19 vaccines train our immune systems to make antibodies using synthetic [blank] of the virus' spike protein. If a vaccinated person later encounters the virus, the antibodies recognize it and bind to the spike protein to prevent [blank] . The first dose of an mRNA vaccine prepares the cells to make antibodies, and the second dose matures and [blank] those antibodies to bind even more [blank] to the spike protein.
Sample Answer & Audio Transcript
COVID-19 vaccines train our immune systems to make antibodies using synthetic versions of the virus' spike protein. If a vaccinated person later encounters the virus, the antibodies recognize it and bind to the spike protein to prevent infection . The first dose of an mRNA vaccine prepares the cells to make antibodies, and the second dose matures and enhances those antibodies to bind even more strongly to the spike protein.
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