The incubation time of SARS-CoV-2, the causative agent of COVID-19, is comparable to both SARS and MERS.

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• Xuan Jiang, Simon Rayner, and Min-Hua Luo.
• The Joint Center of Translational Precision Medicine Guangzhou Institute of Pediatrics, Guangzhou Women and Children Medical Center, Guangzhou, China.
• J. Med. Virol. 2020 May 1; 92 (5): 476-478.

AbstractThe outbreak of a novel coronavirus (SARS-CoV-2) since December 2019 in Wuhan, the major transportation hub in central China, became an emergency of major international concern. While several etiological studies have begun to reveal the specific biological features of this virus, the epidemic characteristics need to be elucidated. Notably, a long incubation time was reported to be associated with SARS-CoV-2 infection, leading to adjustments in screening and control policies. To avoid the risk of virus spread, all potentially exposed subjects are required to be isolated for 14 days, which is the longest predicted incubation time. However, based on our analysis of a larger dataset available so far, we find there is no observable difference between the incubation time for SARS-CoV-2, severe acute respiratory syndrome coronavirus (SARS-CoV), and middle east respiratory syndrome coronavirus (MERS-CoV), highlighting the need for larger and well-annotated datasets.© 2020 Wiley Periodicals, Inc.

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