Faster de novo mutation of SARS-CoV-2 in shipboard quarantine Ting-Yu Yeh 1 & Gregory P. Contreras 2 1. Department of Biology, Johns Hopkins University 3400 N. Charles Street, Baltimore Maryland 21218, USA 2. Columbus Center, Institute of Marine and Environmental Technology 701 East Pratt Street, Baltimore, Maryland 21202, USA Correspondence to Ting-Yu Yeh (email: yehty@auxergen.com) (Submitted: 5 April 2020 – Published online: 6 April 2020) DISCLAIMER This paper was submitted to the Bulletin of the World Health Organization and was posted to the COVID-19 open site, according to the protocol for public health emergencies for international concern as described in Vasee Moorthy et al. (http://dx.doi.org/10.2471/BLT.20.251561). The information herein is available for unrestricted use, distribution and reproduction in any medium, provided that the original work is properly cited as indicated by the Creative Commons Attribution 3.0 Intergovernmental Organizations licence (CC BY IGO 3.0). RECOMMENDED CITATION Yeh TY & Contreras GP. Faster de novo mutation of SARS-CoV-2 in shipboard quarantine. [Preprint]. Bull World Health Organ. E-pub: 6 April 2020. doi: http://dx.doi.org/10.2471/BLT.20.255752