A randomized trial in Tanzania found that a single community screening of an HIV-focused radio drama produced improvements in knowledge and attitudes that remained evident 18 months later, with some effects extending to family members.
What they studied
Researchers conducted a trial across 30 villages in rural Tanzania, enrolling 1,205 participants.
Villages were randomly assigned to a community screening of either a radio drama about HIV disclosure and treatment or an unrelated drama.
Researchers assessed HIV knowledge, stigma, willingness to disclose HIV status and support for HIV-related policy priorities. They also surveyed participants’ partners, close friends and teenage children to understand whether the effects extended beyond the original audience.
What the research found
Eighteen months after the screening, participants who received the HIV drama showed measurable improvements in HIV knowledge, willingness to disclose their status and support for prioritizing HIV in public policy.
Although the effects had decreased since the initial assessment, they remained evident more than a year after a single screening.
The researchers also found increased willingness to disclose HIV status among participants’ partners and teenage children, suggesting that some effects extended beyond the original audience into their households.
The study did not find a statistically clear change in expressed HIV stigma, indicating that different attitudes may respond differently to the same communication experience.
What this helps us understand
The findings offer evidence that storytelling can influence health knowledge and attitudes long after an initial experience.
The effects among family members are particularly notable. They suggest that the influence of health communication can extend beyond its immediate audience, even when only one person in a household directly participates.
The study also highlights the value of looking beyond immediate audience reactions. Changes in knowledge, willingness to disclose and public priorities remained measurable 18 months later.
For health communication, this provides a longer-term view of how a single cultural experience can contribute to attitudes surrounding HIV, including within the relationships closest to participants.
