Abstract
Pertussis, a highly contagious respiratory disease caused by Bordetella pertussis, is endemic in Brazil, but is underdiagnosed in adults due to atypical symptomatology and limited diagnosis time window. Brazil's Ministry of Health recommends decennial boosters in adults against diphtheria and tetanus, but not pertussis. After the COVID-19 pandemic, infectious diseases surged worldwide due to lack of natural exposure and reduced immunization coverage. Asthma and COPD populations are at increased risk of pertussis infection. This study assessed the cost-utility of decennial pertussis vaccination with Tdap vaccine versus no pertussis vaccination in Brazil's adult asthma and COPD populations in a high-incidence context.
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