Print HIV / AIDS prevention campaign materials ( e . g ., posters , pamphlets , stickers ) from 10 public health organizations in Kenya were evaluated according to the Extended Parallel Process Model ( EPPM ), a health behavior change theory based on the fear appeal literature , at various sites along the Trans - Africa Highway in Kenya . Three groups each of commercial sex workers ( CSW s ), truck drivers ( TDs ) and their assistants ( ASSTs ), and young men ( YM ) who live and work at the truck stops participated in focus group discussions where reactions to the campaign materials were gathered according to this theoretical base . Reactions to campaign materials varied substantially , according to the poster or pamphlet viewed . Overall , most participants wanted more detailed information about ( a ) the proper way to use condoms , ( b ) ideas for how to negotiate condom use with reluctant partners , and ( c ) accurate information on symptoms of AIDS and what to do once one contracted HIV . Both quantitative and qualitative analyses of the campaign materials are reported .