From the Summary: "Since the COVID-19 [coronavirus disease 2019] outbreak was first diagnosed, it has spread to over 200 countries and all U.S. states. The pandemic is negatively affecting global economic growth beyond anything experienced in nearly a century. Estimates so far indicate the virus could trim global economic growth by 3.0% to 6.0% in 2020, with a partial recovery in 2021, assuming there is not a second wave of infections. [...] The full impact will not be known until the effects of the pandemic peak. This report provides an overview of the global economic costs to date and the response by governments and international institutions to address these effects."
CRS Report for Congress, R46270
Congressional Research Service: https://crsreports.congress.gov/