Alliance for Pandemic Preparedness

June 17, 2020

The Assessment of Transmission Efficiency and Latent Infection Period on Asymptomatic Carriers of SARS-CoV-2 Infection

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  • Of 147 initially asymptomatic individuals with SARS-CoV-2 infection in Anhui Province, China, 11% developed illness during a 14 day isolation period. The secondary attack rate was 10% for the pre-symptomatic carriers, versus 3% for the asymptomatic carriers.   

Liu et al. (June 2020). The Assessment of Transmission Efficiency and Latent Infection Period on Asymptomatic Carriers of SARS-CoV-2 Infection. International Journal of Infectious Diseases. https://doi.org/10.1016/j.ijid.2020.06.036