Betacoronavirus/classification, Coronavirus Infections/epidemiology, Pneumonia, Viral/epidemiology, Pandemics/prevention & control, Health Communication, Quarantine/organization & administration, Medical Staff, Hospital/education, Health Human Resource Training, Coronavirus Infections/diagnosis, Coronavirus Infections/transmission, Pneumonia, Viral/diagnosis, Pneumonia, Viral/transmission, Education, Public Health Professional, Symptom Flare Up, Public Health Surveillance, Epidemiological Monitoring, Serology/methods, Polymerase Chain Reaction/methods, China/epidemiology, Brazil/epidemiology, Infectious Disease Incubation Period, Social Isolation, Health Systems/organization & administration, COVID-19