Vaccines and natural immunity vs good vs alpha and delta a year later.
www.medrxiv.org
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Neutralization of VOCs including Delta one year post COVID-19 or vaccine
Background SARS-CoV-2 variants, such as Alpha, Beta, Gamma and Delta, are raising concern about the efficiency of neutralizing antibodies (NAb) induced by wild-type infection or vaccines based on the wild-type spike. Methods We determined IgG and NAb against SARS-CoV-2 variants one year...