A recent study published in Vaccine X examines uptake and willingness-to-pay (WTP) for adult immunization against pneumococcal disease in Vietnam. Among adults aged 45 years and older in Vietnam, the acceptance rate for the pneumococcal vaccine was 76.6%, and the proportion willing to pay was 69.6% for a median cost per dose of US$35.29. However, despite relatively strong interest, key cost- and equity-related constraints remain: many individuals are still unable or unwilling to pay full price, and older adult vaccination programs remain largely donor- or self-financed, limiting scale and sustainability.
While demand appears high, the study signals that pricing and subsidy mechanisms will critically determine real coverage: even when willingness to pay is non-trivial, the absence of public financing or insurance support could slow uptake among lower-income groups. Second, the results reinforce the need to embed adult-vaccination models in national strategies that account not just for delivery cost and cost-effectiveness but also for behavioral demand, affordability and co-payment thresholds. For contexts like Vietnam, with ageing populations and rising non-communicable disease burdens, these data underline the importance of devising sustainable financing models to bridge the gap between “willingness to pay” and “able to pay”.
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