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. 2021 Apr 12:1–8. doi: 10.1080/14737159.2021.1913123

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© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

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Figure 4. — NAb measurement by LFT against wildtype and South Africa variant. Plasmas from 4 BioNTech/Pfizer vaccine recipients and 4 Moderna vaccine recipients were collected 10–20 days after second dose. These plasmas were 1:20 diluted and tested against gold nanoparticles conjugated with same amount of S1 proteins from wildtype and South Africa variant, respectively. Neutralization percentage was obtained through the same procedure as described in Figure 2 legend