Qu Bo is a Chinese term that translates to "quarantine" in English. It refers to the practice of isolating individuals or groups to prevent the spread of infectious diseases. This method has been used throughout history, especially during outbreaks of illnesses like COVID-19 and SARS. In modern contexts, Qu Bo can involve various measures, such as restricting movement, monitoring health, and providing medical care. Governments and health organizations implement these protocols to protect public health and ensure safety during health crises.