doi: 10.1038/s41577-020-0389-z [PMC free article] [PubMed] [CrossRef] [Google Scholar] 68. Inferred recent SARS-CoV-2 illness was associated with a strong correlation between mucosal and systemic SARS-CoV-2 anti-spike reactions. Individuals with pre-existing HCoV-S1 reactivity exhibited significantly higher antibody reactions to SARS-CoV-2 in both plasma (IgG regression coefficients = 0.20, 95% CI = Continue Reading