Patient zero
01
零号病人, 第一个病例
the first person known to have a certain disease, often seen as the starting point of an outbreak
例子
Identifying patient zero is crucial for understanding how an outbreak began.
识别零号病人对于了解疫情如何开始至关重要。
Health officials are working to trace the movements of patient zero to prevent further spread of the disease.
卫生官员正在努力追踪零号病人的动向，以防止疾病的进一步传播。
