Genetic Evidence and Host Immune Response in Persons Reinfected with SARS-CoV-2, Brazil

Autor: Natalia Fintelman-Rodrigues, Aline P.D. da Silva, Monique Cristina dos Santos, Felipe B. Saraiva, Marcelo A. Ferreira, João Gesto, Danielle A.S. Rodrigues, André M. Vale, Isaclaudia G. de Azevedo, Vinícius C. Soares, Hui Jiang, Hongdong Tan, Diogo A. Tschoeke, Carolina Q. Sacramento, Fernando A. Bozza, Carlos M. Morel, Patrícia T. Bozza, Thiago Moreno L. Souza
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Emerging Infectious Diseases, Vol 27, Iss 5, Pp 1446-1453 (2021)
Druh dokumentu: article
ISSN: 1080-6040
1080-6059
DOI: 10.3201/eid2705.204912
Popis: 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.
Databáze: Directory of Open Access Journals