From the Document: "Testing for the novel coronavirus disease (COVID-19) is essential to help researchers understand the epidemiology of the disease and to help policymakers and healthcare professionals reduce spread, strategically deliver treatment resources, and devise appropriate policy responses. There is already evidence that U.S.states with more confirmed infections (which can only be determined with testing) are more likely than their peer states with fewer confirmed cases to enact physical distancing protocols, thereby dramatically reducing travel and other mechanisms for virus spread. In his March 23 media briefing, 1 the World Health Organization (WHO) Director General made a strong call for the testing of every suspected case as part of an 'aggressive and targeted' tactic against COVID-19."
Lerner Center Research Brief Number 19
Syracuse University. Lerner Center for Public Health Promotion
Lerner Center for Public Health Promotion: https://lernercenter.syr.edu/