1.   She accidentally pricked herself with a contaminated needle.

2.   And they work in groups, so partners can monitor each other for fatigue that could lead to such fatal mishaps as pricking oneself with a contaminated needle.

3.   AIDS is most often spread through sexual contact, sharing contaminated needles and infected blood products, but also can be passed to children from infected mothers.

4.   AIDS is most often spread through sexual contact, sharing contaminated needles and infected blood products.

5.   AIDS, the acquired immune deficiency syndrome, is most often spread through sexual contact, sharing contaminated needles and infected blood products.

6.   Evidence has existed for years that H.I.V. spreads swiftly among addicts who share contaminated needles.

7.   Experience has shown that the greatest risk is from contaminated needles and syringes and the lack of standard precautions in hospitals.

8.   Hepatitis can be spread in many ways, including through contaminated food and water, sexual intercourse, contaminated needles and blood transfusions.

9.   In Massachusetts, ostrich attitudes toward drug abuse have thwarted AIDS prevention efforts, even though sharing contaminated needles is the leading cause of AIDS in this state.

10.   In Tacoma, similar efforts sharply reduced the rate of hepatitis infections, which also are spread through contaminated needles, suggesting that HIV infections also dropped.