Genetic Evidence and Host Immune Response in Persons Reinfected with SARS-CoV-2, Brazil.
Genetic Evidence and Host Immune Response in Persons Reinfected with SARS-CoV-2, Brazil.
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DOI:
10.3201/eid2705.204912
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发表时间:
2021-05
影响因子:
11.8
通讯作者:
Souza TML
中科院分区:
文献类型:
--
作者:
Fintelman-Rodrigues N;da Silva APD;Dos Santos MC;Saraiva FB;Ferreira MA;Gesto J;Rodrigues DAS;Vale AM;de Azevedo IG;Soares VC;Jiang H;Tan H;Tschoeke DA;Sacramento CQ;Bozza FA;Morel CM;Bozza PT;Souza TML
The dynamics underlying severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reinfection remain poorly understood. We identified a small cluster of patients in Brazil who experienced 2 episodes of coronavirus disease (COVID-19) in March and late May 2020. In the first episode, patients manifested an enhanced innate response compared with healthy persons, but neutralizing humoral immunity was not fully achieved. The second episode was associated with different SARS-CoV-2 strains, higher viral loads, and clinical symptoms. Our finding that persons with mild COVID-19 may have controlled SARS-CoV-2 replication without developing detectable humoral immunity suggests that reinfection is more frequent than supposed, but this hypothesis is not well documented.
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