This is the 5392nd most frequent Chinese word.
传染源
Source of infection.
In this sentence, "传染源" refers to the origin or source from which an infection spreads. It is used in a context discussing a medical or epidemiological concept.
传染源是导致疾病传播的关键因素。
The source of infection is the key factor in the spread of diseases.
Here, "传染源" is employed to denote the specific origin of an infectious outbreak, implicated in investigative efforts.
医生正在寻找此次疫情的传染源。
Doctors are seeking the source of infection for this outbreak.
In this context, "传染源" is used to highlight the sources that directly contribute to infection spread, linking their existence to preventive measures.