If the blood contains these antibodies,one is said to be seropositive,that is,one is infected and is presumably capable of transmitting the virus to other people.

• 如果一个人的血液中包含有这些抗体，这个人就被称作血清呈阳性者，这就是说，他受到了感染，而且由此可以认为他能够将病毒传染给他人。