VOA常速英语:Much Progress, Much to Do on HIV

2. infectious adj. 传染的, 有传染性的
例句：Influenza is an infectious disease.
流感是一种传染病。

3. suppress vt. 抑制 (身体功能或反应)
例句：The reproduction and growth of the cancerous cells can be suppressed by bombarding them with radiation.
癌细胞的繁殖和生长可通过放射线辐射加以抑制。

4. incidence n. 发生率,；影响范围；发生范围；影响程度
例句：This area has a high incidence of crime, disease, unemployment, etc.
这个地区的犯罪率、发病率、失业率等很高。

5. peak vi.达到高峰, 达到最大值
例句：Middle school enrolments will peak this year.
今年中学入学人数将达到高峰。

6. reduce vt. 缩减, 减少; 降低
例句：We must try our best to reduce the likelihood of war.
我们必须尽最大努力减少战争的可能性。

7. spread vt. 传播；散布；蔓延
例句：The disease was spread in the small town.
这种疾病曾在这个小镇传播蔓延过。

8. eliminate vt. 排除,消除,消灭
例句：Our goal is to eliminate poverty.
我们的目标是消灭贫困。

9. ban n. 禁止;禁令
例句：The police lifted the ban against parking in this street.
警察取消了不准在这条街上停车的禁令。

10. advocacy n. 拥护, 支持
例句：He is insistent on the advocacy of new scientific methods.
他坚持提倡新的科学方法。