1. Presenting Characteristics, Comorbidities, and Outcomes Among 5700 Patients Hospitalized With COVID-19 in the New York City Area [published correction appears in doi: 10.1001/jama.2020.7681];S Richardson;JAMA,2020
2. World Health Organization. Coronavirus disease 2019 (COVID-19): situation report, 30. [2020] World Health Organization.
3. Johns Hopkins University (JHU). (2020, August 1). COVID-19 Dashboard by the Center for Systems Science and Engineering (CSSE0). Retrieved from https://gisanddata.maps.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6
4. Gobierno de México, Secretaría de Salud. (2020, August 1). Coronavirus (COVID-19)-Comunicado Técnico Diario. Retrieved from https://www.gob.mx/salud/documentos/coronavirus-covid-19-comunicado-tecnico-diario-238449
5. Covid-19 is causing the collapse of Brazil’s national health service;R de Oliveira Andrade;BMJ,2020