COVID-19 patients: hospitalized patients with COVID-19 pneumonia from Leishenshan Hospital, Zhongnan Hospital of Wuhan University, and Wuhan No. 7 Hospital who received both COVID-19 IgM/IgG tests and RT-PCR tests before being discharged from hospital. Healthcare providers: doctors, nurses, and nursing workers without a confirmed COVID- 19 diagnosis working in Zhongnan Hospital of Wuhan University who received both COVID-19 IgM/IgG tests and RT-PCR tests before resuming normal clinical services for patients without COVID-19.
General workers: general workers in Wuhan who received both COVID-19 IgM/IgG tests and RT-PCR tests before returning to work. Other patients who received both COVID-19 IgM/IgG tests and RT-PCR tests to screen for SARS-CoV-2 infections before being admitted to Zhongnan Hospital of Wuhan University.


Northwestern University

-  Figure 1
-  Table 1
-  Table 2
-  Table 3
-  Table 4
-  Table 5

Figures and Tables

Figure 1. Survival among hospitalized patients with COVID-19 who had IgG antibodies
to SARS-CoV-2 and those who did not.
Positive: patients who had IgG antibodies to SARS-CoV-2.
Negative: patients who did not have IgG antibodies to SARS-CoV-2.
Adjust hazard ratio: adjusted for age, sex, and severity of COVID-19 at admission.

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