Betacoronavirus/immunology, Coronavirus Infections/epidemiology, Coronavirus Infections/prevention & control, Pneumonia, Viral/epidemiology, Pneumonia, Viral/prevention & control, Unified Health System/organization & administration, Pandemics/prevention & control, Pandemics/statistics & numerical data, Financial Resources in Health/economics, Ventilators, Mechanical/supply & distribution, Hospital Bed Capacity/statistics & numerical data, Brazil/epidemiology, Intensive Care Units/statistics & numerical data, Viral Vaccines/economics, Viral Vaccines/immunology, Health Personnel/organization & administration, Disease Notification/statistics & numerical data, Epidemiological Monitoring, Health Consortia, COVID-19, Pazuelo, Eduardo , Ghebreyesus, Tedros Adhanom, Vacina de Oxford