Overcoming Health Information Inequities: Valley fever Information Repertoires Among Vulnerable Communities in California

Although Valley fever represents a growing public health challenge for Central and Southern Californian residents, awareness remains severely limited. The California Department of Public Health (CDPH) ran a cross-platform campaign to mitigate this awareness gap and impact prevention behavior. This study evaluates exposure to the CDPH campaign, followed by an examination of the information consumption patterns associated with key health outcomes. Results suggest that the CDPH campaign successfully improved knowledge accuracy, reduced misperceptions, and increased the likelihood of prevention behavior. Using an information repertoire lens revealed a more nuanced account. Most information repertoires positively influenced accurate knowledge retention and prevention behavior compared to those who were not exposed. The most diverse information repertoire, including interpersonal and media channels, was associated with increased knowledge accuracy, affective risk concerns, personal susceptibility, and prevention behavior. However, exposure to this repertoire was also associated with greater misperceptions. In addition, medical professional and radio-based repertoires positively influenced personal susceptibility perceptions. Overall, this research illustrates the importance of examining not only the general outcomes of health campaigns but also the patterns of information acquisition - particularly when working with underserved communities whose health information consumption preferences may not be comprehensively reflected in the literature.