Intent to Accept a Valley Fever Vaccine for Humans and Dogs and Factors Influencing Intended Uptake: A Cross-Sectional Survey in Two Endemic Regions

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Abstract
As Valley fever (coccidioidomycosis) vaccine candidates progress towards human trials, a challenge to their eventual introduction is understanding vaccine demand and addressing vaccine hesitancy. We assessed intent to accept a Valley fever vaccine for humans and dogs in two populations living in highly endemic regions: employees at Kern Medical (KM) in Bakersfield, California (N = 103) and members of the public in West Texas (N = 230). We compared the weighted proportions of each population willing to vaccinate themselves and their dogs by demographic and coccidioidomycosis risk factors and assessed the importance of vaccine-related factors on vaccine uptake in each population. We found that 42% (95% confidence interval (CI): 34–49%) of West Texas residents and 76% (95% CI: 63–85%) of KM employees were willing to accept a coccidioidal vaccine, while 49% (95% CI: 41–58%) of West Texas residents and 74% (95% CI: 58–86%) of KM employees were willing to vaccinate their dogs. Among West Texas residents, vaccination willingness was significantly higher among those with prior awareness of Valley fever (adjusted odds ratio (aOR): 3.83, 95% CI: 1.73, 8.49). Across both study populations, absence of side effects was the most important condition that would increase vaccination willingness. Our results indicate substantial interest in a Valley fever vaccine while suggesting that increased Valley fever awareness and minimal vaccine side effects may be important for increased uptake.
Funding Information
  • National Science Foundation (2432608)
  • National Institute of Allergy and Infectious Diseases (K01AI173529)

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