vaccine 6 Dengue vaccine reaches the wet season 27 Oct 2026 HPV vaccination before pregnancy tied to fewer preterm births 8 Oct 2026 A malaria vaccine reaches the forest villages 28 May 2026 An mRNA flu vaccine edges out the old standard shot 16 May 2026 Flu season that quietly disappeared 25 Jan 2026 A vaccine-preventable tragedy: America's measles outbreak of 2025 1 Jul 2025