Analysis of viral load at day 3 by qPCR for SARS-CoV-2 nucleoprotein (N2) RNA showed that some hamsters treated with N5203 S-IgA or N217 S-IgA showed a trend of decreased virus production in the nasal turbinate compared to the control.
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Comprehensive analysis of nasal IgA antibodies induced by intranasal administration of the SARS-CoV-2 spike protein.
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However, this did not reach statistical significance.