Single-dose regimens remove the programme completion problem
Two-dose schedules lose coverage between doses, with completion running near 71% in programme settings, and every uncompleted course is a partially protected person and a wasted dose. A single-dose vaccine removes that leakage entirely, simplifies campaign logistics and halves the cold chain burden per person protected. The segment compounds at 23.1% on those operational grounds rather than on any efficacy advantage. For mass campaigns in endemic settings, regimen simplicity is worth more than incremental immunogenicity. Ministries planning mass campaigns weight delivery simplicity heavily, and several have already begun favouring single-dose candidates in forward planning regardless of comparative immunogenicity data.
Market Impact: Brazil compounding at 22.6% annuall








