Brazil Begins Distributing RSV Vaccine to States, Maternal Shots Set for December

Overview

• The first 673,000 doses have started to reach state networks, with vaccination of pregnant women planned throughout December.
• The immunization is free in SUS for those from the 28th week of pregnancy, given as a single dose each gestation, and can be co-administered with influenza and COVID-19 vaccines.
• The Health Ministry purchased 1.8 million doses for about R$1.17 billion and plans an additional 4.2 million doses through 2027.
• Clinical data indicate 81.8% efficacy against severe RSV disease in the first 90 days of life, with authorities estimating prevention of roughly 28,000 hospitalizations per year benefiting about 2 million newborns.
• Brazil has recorded 43,100 severe RSV-related cases in 2025 through November 15, with 82.5% of hospitalizations in children under two, and Amazonas is slated to receive 18,820 doses from the initial shipments.