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Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+China+Life+Sci 2021 ; 64 (12): 2129-2143 Nephropedia Template TP
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Longitudinal virological changes and underlying pathogenesis in hospitalized COVID-19 patients in Guangzhou, China #MMPMID33945070
Li Z; Li Y; Sun R; Li S; Chen L; Zhan Y; Xie M; Yang J; Wang Y; Zhu A; Gu G; Yu L; Li S; Liu T; Chen Z; Jian W; Jiang Q; Su X; Gu W; Chen L; Cheng J; Zhao J; Lu W; Zheng J; Li S; Zhong N; Ye F
Sci China Life Sci 2021[Dec]; 64 (12): 2129-2143 PMID33945070show ga
Prolonged viral RNA shedding and recurrence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in coronavirus disease 2019 (COVID-19) patients have been reported. However, the clinical outcome and pathogenesis remain unclear. In this study, we recruited 43 laboratory-confirmed COVID-19 patients. We found that prolonged viral RNA shedding or recurrence mainly occurred in severe/critical patients (P<0.05). The average viral shedding time in severe/critical patients was more than 50 days, and up to 100 days in some patients, after symptom onset. However, chest computed tomography gradually improved and complete absorption occurred when SARS-CoV-2 RT-PCR was still positive, but specific antibodies appeared. Furthermore, the viral shedding time significantly decreased when the A1,430G or C12,473T mutation occurred (P<0.01 and FDR<0.01) and increased when G227A occurred (P<0.05 and FDR<0.05). High IL1R1, IL1R2, and TNFRSF21 expression in the host positively correlated with viral shedding time (P<0.05 and false discovery rate <0.05). Prolonged viral RNA shedding often occurs but may not increase disease damage. Prolonged viral RNA shedding is associated with viral mutations and host factors.