Takeda expands dengue vaccine supply to Brazil amid El Niño outbreak risk

Takeda signed a new contract with Brazil's Ministry of Health in June to supply 18 million doses of its dengue vaccine Qdenga over two years, with capacity to deliver more if needed. The move anticipates a rise in dengue cases in the second half of 2026, driven by El Niño bringing heavier rains to the South and Southeast regions. This signals proactive public-health preparedness but leaves uncertainty about actual demand and delivery timelines.