When the intervention began in 1991, bleach use was thought to be a highly
effective strategy for reducing HIV transmission. The project focused on bleach
use because the researchers believed that it was a strategy that would be useful
for the largest number of injection drug users. In addition to information about
bleach use, the researchers also provided information about drug treatment
During the intervention, new guidelines regarding risk reduction for
drug injectors were issued that placed less emphasis on bleach use. When these
guidelines were published, the AIDS Community Demonstration Projects changed
their intervention messages to place more emphasis on reducing needle sharing.
Messages about bleach use were also provided because sterile needles were not
easily available in some of the AIDS Community Demonstration Project cities.