Coronavirus Infections/epidemiology, Pneumonia, Viral/epidemiology, Pneumonia, Viral/prevention & control, Betacoronavirus, Coronavirus Infections/prevention & control, Immunization Programs/organization & administration, Vaccines/supply & distribution, Americas/epidemiology, Communicable Disease Control/organization & administration, Pandemics/prevention & control, Coronavirus Infections/diagnosis, Polymerase Chain Reaction/instrumentation, Hospital Bed Capacity/statistics & numerical data, Intensive Care Units/statistics & numerical data, Health Systems/organization & administration, COVID-19, Etienne, Carissa F