@article {662888,
	title = {Population-scale Longitudinal Mapping of COVID-19 Symptoms, Behaviour and Testing},
	journal = {Nature Human Behavior},
	year = {2020},
	abstract = {Despite the widespread implementation of public health measures, coronavirus disease 2019 (COVID-19) continues to spread in the United States. To facilitate an agile response to the pandemic, we developed How We Feel, a web and mobile application that collects longitudinal self-reported survey responses on health, behaviour and demographics. Here, we report results from over 500,000 users in the United States from 2 April 2020 to 12 May 2020. We show that self-reported surveys can be used to build predictive models to identify likely COVID-19-positive individuals. We find evidence among our users for asymptomatic or presymptomatic presentation; show a variety of exposure, occupational and demographic risk factors for COVID-19 beyond symptoms; reveal factors for which users have been SARS-CoV-2 PCR tested; and highlight the temporal dynamics of symptoms and self-isolation behaviour. These results highlight the utility of collecting a diverse set of symptomatic, demographic, exposure and behavioural self-reported data to fight the COVID-19 pandemic.},
	url = {https://rdcu.be/b7dA6},
	author = {William E. Allen and Altae-Tran, Han and Briggs, James and Xin Jin and McGee, Glen and Shi, Andy and Raghavan, Rumya and Mireille Kamariza and Nova, Nicole and Pereta, Albert and Danford, Chris and Kamel, Amine and Gothe, Patrik and Milam, Evrhet and Aurambault, Jean and Primke, Thorben and Li, Weijie and Inkenbrandt, Josh and Huynh, Tuan and Chen, Evan and Lee, Christina and Croatto, Michael and Bentley, Helen and Lu, Wendy and Murray, Robert and Travassos, Mark and Brent A. Coull and Openshaw, John and Casey S. Greene and Shalem, Ophir and Gary King and Probasco, Ryan and Cheng, David R. and Silbermann, Ben and Zhang, Feng and Lin, Xihong}
}
