1.   Drug users can swap their dirty needles for new ones, paid for by the Health Authority.

2.   Besides any flowing or spattering blood, dirty needles or cutting tools can deliver the viruses.

3.   After turning in her dirty needles, she carefully put the new ones in a new backpack.

4.   But he also reduced the chances of handing a dirty needle to someone and passing on the AIDS virus, with which he is infected.

5.   Critics contend that exchanging dirty needles for clean ones only makes it easier for addicts to continue using drugs and for people to try drugs for the first time.

6.   Dirty needles are causing an epidemic of liver disease in the developing world.

7.   Dirty needles can spread the hepatitis B virus.

8.   Drug experts say that chiva appeals to teenagers who have eschewed shooting up heroin for fear of dirty needles.

9.   Dirty needles have always been the most efficient way to spread the AIDS virus.

10.   Hodes said he was less certain of a strategy for intravenous drug users, who are fueling the epidemic with dirty needles.