英语听力精选进阶版 13765（在线收听）

HIV home testing

Vocabulary

over the counter

without needing a prescription

mouth swab

cotton wool used to collect cell samples from the mouth

antibodies

proteins which fight infection and disease

trials

tests or experiments

accuracy

likelihood of being correct

privacy

being free from the interference of others

avert

prevent

variable

inconsistent

counselling

specialist advice and guidance

contracting

getting a disease