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. 2022 Apr 29;10(5):703. doi: 10.3390/vaccines10050703

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Scatter dot plot of the neutralizing titer for convalescent-PD (A), naïve-HCW (B) and exposed-HCW (C) following 2 doses of BTN162b2. In the graph, the bars stop at the titer mean for each variant. The convalescent-PD group has a high response only for the reference strain while the naïve-HCW has a high response to both the reference and alpha variants, but overall mimics the convalescent-PD trend. The experienced-HCW cohort achieved the highest response to all the different SARS-CoV-2 variants between the groups. High titers were associated with a larger variability (higher SD). Reference: D614G strain; Original: Wuhan.