Betacoronavirus, Coronavirus Infections/epidemiology, Pneumonia, Viral/epidemiology, Pandemics/prevention & control, Primary Health Care/organization & administration, Local Health Systems/organization & administration, Coronavirus Infections/diagnosis, Pneumonia, Viral/diagnosis, Personal Protective Equipment/standards, Quarantine/organization & administration, Social Isolation, Triage/organization & administration, Hand Hygiene, Hospital Sanitation, Health Personnel/standards, Masks, Patient Acuity, Epidemiological Monitoring, Risk Groups, Coronavirus Infections/transmission, Pneumonia, Viral/transmission, Home Care Services/organization & administration, COVID-19