Introduction: Despite the reported cases of whooping cough in Armenia, there has been no formal evaluation of "who these cases are and their load on hospital wards". In a tertiary reference hospital, we determined the trend in hospitalized pertussis cases stratified by vaccination status and risk factors associated with apnea and hospital stay.
Methodology: Retrospective cohort study of children (< 18 years) with confirmed pertussis hospitalized at the Republican Infectious Diseases Hospital between 2014 and 2018.