Coronavirus Disease 2019 (COVID-19)

This resource is about the coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It explains the symptoms, transmission, risk factors, complications, prevention, vaccination, and travel advice related to COVID-19. It also mentions the efforts of health organizations like the World Health Organization (WHO) and the U.S. Centers for Disease Control and Prevention (CDC) in monitoring and providing updates on the pandemic.

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Disease Tracking and Surveillance

Disease surveillance helps us detect disease cases, understand burden of disease and risk factors, provide the basis for timely and informed decision-making, guide control measures, and monitor impacts. Since the onset of COVID-19, surveillance efforts have worked to provide real-time tracking and forecast data, despite challenges with diagnostic capacity, case reporting, insufficient contact tracing, and fragmented data systems. COVID-19 has highlighted the need to invest in modern data systems, expand and skill up the workforce, and ensure data reporting and interpretation retain high ethical and epidemiological standards.