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
Souza TML
中科院分区:
医学2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

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严重急性呼吸综合征冠状病毒2(SARS-CoV-2)再感染的动力学仍然知之甚少。我们在巴西发现了一小群患者,他们于2020年3月和5月下旬经历了两次冠状病毒病(COVID-19)发作。在第一次发作中,患者表现出与健康人相比增强的先天性反应,但中和体液免疫没有完全实现。第二次发病与不同的SARS-CoV-2毒株、较高的病毒载量和临床症状有关。我们发现,轻度COVID-19患者可能已经控制了SARS-CoV-2复制,而没有产生可检测到的体液免疫,这表明再感染比想象的更频繁,但这一假设没有得到很好的证明。
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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