1.   But alcoholism, like drug addiction, is a progressive disease that gets worse without treatment.

2.   Delinquency and drug addiction are more common in areas of high unemployment.

3.   Drug addiction is now the biggest social problem in American cities.

4.   Furthermore, because alcohol and other mood-altering chemicals are cross-addictive, we shall probably always have drug addiction as well.

5.   His drug addiction had turned him into a husk of his former self.

6.   In drug addiction, infections such as hepatitis and Septicaemia get into the blood stream through infected needles.

7.   It is often thought that drug addiction is a failure of will-power and is evidence of a weak will or inadequate personality.

8.   Many are afflicted by alcoholism, drug addiction, and depression.

9.   Nor were muggings, attacks on old ladies and children, and drug addiction.