id author title date pages extension mime words sentences flesch summary cache txt cord-339568-th2xmhb6 Yan, Meitian Analysis of the diagnostic value of serum specific antibody testing for coronavirus disease 2019 2020-06-27 .txt text/plain 1869 114 53 The detection of antibodies produced during the immune response to severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection has become an important laboratory method for the diagnosis of COVID‐19. In this study, retrospective analysis was used to explore the dynamic changes of serum IgM and IgG antibody and factors affecting diagnostic efficacy, so as to provide a theoretical basis for clinical diagnosis and treatment. Serum IgM antibodies against SARS-CoV can be detected 3-6 days after infection, but levels rapidly decrease thereafter. The positive rates of IgM and IgG antibodies in the non-severe group (71.62% and 71.14%, respectively) were higher than that in the severe group (28.38% and 28.86%, respectively), but these differences were not statistically significant (p > 0.05). Development and Clinical Application of A Rapid IgM-IgG Combined Antibody Test for SARS-CoV-2 Infection Diagnosis ./cache/cord-339568-th2xmhb6.txt ./txt/cord-339568-th2xmhb6.txt