STUDY: Covid Antibodies may protect against Variants

If you’ve had Covid, will your antibodies protect you against the variants Dr. Fauci warns about? New research from Emory University and University of Texas seems to indicate YES your antibodies may well protect you against future variants. Read the research here…

Neutralizing Antibodies Against SARS-CoV-2 Variants After Infection and Vaccination

Published Mar 2021 in JAMA

Serum neutralizing antibodies rapidly appear after SARS-CoV-2 infection1 and vaccination2 and are maintained for several months.3,4 The emergence of SARS-CoV-2 variants has raised concerns about the breadth of neutralizing-antibody responses. We compared the neutralizing-antibody response to 4 variants in infected and vaccinated individuals to determine how mutations within the spike protein are associated with virus neutralization.


This study found neutralizing activity of infection- and vaccine-elicited antibodies against 4 SARS-CoV-2 variants, including B.1, B.1.1.7, and N501Y. Because neutralization studies measure the ability of antibodies to block virus infection, these results suggest that infection- and vaccine-induced immunity may be retained against the B.1.1.7 variant. As additional variants emerge, neutralizing-antibody responses after infection and vaccination should be monitored.

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