Glenn Cohen (Harvard University), Lawrence O. Gostin (Georgetown University), Greg Weitzner, Digital Smartphone Tracking for COVID-19: Public Health and Civil Liberties in Tension, J. Am. Med. Assoc., E1-E2, (2020):

This Viewpoint compares manual and digital strategies for coronavirus disease 2019 (COVID-19) contact tracing, describes how countries in Asia and Europe have used smartphone tracking, and discusses privacy and discrimination concerns and strategies for balancing public health and civil liberties in the US.