Alliance for Pandemic Preparedness

June 8, 2020

Seroprevalence of Immunoglobulin M and G Antibodies against SARS-CoV-2 in China

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  • Seroprevalence of antibodies against SARS-CoV-2 was 4% among healthcare workers and 3% among their families in the city of Wuhan, China between March 9 and April 10. In other cities in Hubei province, seropositivity was lower in cities that were further from Wuhan. While seropositivity was highest for IgG, some individuals were positive only for IgM, underscoring that testing for both antibody types may be necessary in seroprevalence studies.  

Xu et al. (June 5, 2020). Seroprevalence of Immunoglobulin M and G Antibodies against SARS-CoV-2 in China. Nature Medicine. https://doi.org/10.1038/s41591-020-0949-6