Africa was certified free of wild poliovirus in 2020, but the continued presence of vaccine-derived poliovirus means vaccination and surveillance must remain strong
Sub-Saharan Africa remains hardest hit as millions of children live with HIV or lose parents, facing heightened risks of poverty, stigma and lost opportunities
Bundibugyo strain drives largest-ever Ebola outbreak as limited testing, delayed diagnosis and cross-border spread strain DRC and Uganda health systems
