Because saliva contains certain antibodies that suppress vi ruses, there is currently no verifiable evidence that viruses at a low concentration can be transmitted through saliva. However, if there is a wound inside one's mouth, the possibility of transmission is increased.
因為口水中有些抗體成分可以抑制病毒，目前仍無證據證明口水內低濃度的病毒具有傳染性，但如果口腔中有傷口，傳染的機率會提高。