Long‐term immunity in convalescent Syrian hamsters provides protection against new‐variant SARS‐CoV‐2 infection of the lower but not upper respiratory tract
Abstract COVID‐19 vaccines provide high levels of protection against severe disease and hospitalization due to severe acute respiratory syndrome‐related coronavirus 2 (SARS‐CoV‐2) infection. Vaccination may be less effective in preventing shedding of infectious viruses from otherwise immune patients. In this study, we describe breakthrough infections and shedding of infectious viruses in convalescent hamsters without significant replication in the lower respiratory tract following reinfection by Alpha and Delta variants despite high levels of circulating antibodies in sera. Using convalescent hamsters with long‐term immunity (up to 1 year) following infection by ancestral SARS‐CoV‐2, we can model aspects of recurring COVID‐19 in the context of preexisting immunity..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:94 |
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| Enthalten in: |
Journal of Medical Virology - 94(2022), 6, Seite 2833-2836 |
| Beteiligte Personen: |
Stauft, Charles B. [VerfasserIn] |
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| BKL: |
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| Anmerkungen: |
© 2022 Wiley Periodicals LLC |
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| Umfang: |
4 |
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| doi: |
10.1002/jmv.27641 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Abstract COVID‐19 vaccines provide high levels of protection against severe disease and hospitalization due to severe acute respiratory syndrome‐related coronavirus 2 (SARS‐CoV‐2) infection. Vaccination may be less effective in preventing shedding of infectious viruses from otherwise immune patients. In this study, we describe breakthrough infections and shedding of infectious viruses in convalescent hamsters without significant replication in the lower respiratory tract following reinfection by Alpha and Delta variants despite high levels of circulating antibodies in sera. Using convalescent hamsters with long‐term immunity (up to 1 year) following infection by ancestral SARS‐CoV‐2, we can model aspects of recurring COVID‐19 in the context of preexisting immunity. | ||
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