For how we live.
A 1,784-child randomised trial in Uganda found one-fifth and one-half doses of the 17DD vaccine matched the full dose for initial immunity — evidence for dose-sparing in young children when supplies run short.
WHO and UNICEF estimates put DTP3 coverage at 85% for a second year running. Yellow fever protection sits at 53% in at-risk countries and HPV at 33% in girls, both far below target.
A WHO global update logged 79 human infections in the Americas and 16 confirmed cases in Africa by late May, with the virus surfacing in areas long considered free of it.
The regional health agency counted 34 confirmed cases and 15 deaths in the first seven weeks of 2026, after 2025 brought the highest South American case total in over two decades.
The year-end immunization summary reports 88% fewer measles deaths since 2000, malaria vaccine in 24 African countries, and 25 years without wild polio in the Western Pacific.