TED演講：關於冠狀病毒，我們瞭解多少？

This discussion examines the nature of COVID-19, identifying high-risk groups such as the elderly and healthcare workers. It compares the virus's virulence to SARS, discusses the limitations of border controls, and emphasizes the need for global public health infrastructure and a better understanding of the animal-human interface to prevent future zoonotic outbreaks.