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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Clin+Immunol 2020 ; 218 (ä): 108524 Nephropedia Template TP
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Long-term infection of SARS-CoV-2 changed the body s immune status #MMPMID32659373
Lin L; Luo S; Qin R; Yang M; Wang X; Yang Q; Zhang Y; Wang Q; Zhu R; Fan H; Wang H; Hu Y; Wang L; Hu D
Clin Immunol 2020[Sep]; 218 (ä): 108524 PMID32659373show ga
The outbreak of SARS-CoV-2-associated pneumonia, a disease called COVID-19, has caused a pandemic worldwide. To investigate the immune responses after infection of SARS-CoV-2 in non-critical patients may help to better understand the disease progression. We collected 334 confirmed COVID-19 cases including 212 still in hospital with nucleic acid test positive on halfway for SARS-CoV-2 and 122 discharged from hospital, compared specific antibodies, immune cells, and cytokine changes between the hospitalized and discharged patients. The hospitalized patients had a longer illness time compared with discharged patients. Analysis of viral loads explained long-term or persistent infection of SARS-CoV-2, which existed with the median time of 18.5 days of the positive nucleic acid test. Serum analysis showed that the specific anti-N IgG antibody was positive in all detected patients after infection of two weeks. Neutrophils, Monocytes, NK cells, and CD4(+) T cells significantly increased, while total lymphocytes and CD8(+) T cells decreased from non-critical hospitalized patients after longer-term infection. Further analysis of the cytokines showed that IL-6, TNF-alpha, IFN-gamma, IL-2, IL-4, and IL-10 from the hospitalized patients were significantly higher, indicating a potential of the increased CD4(+) T cell differentiation.