epa10428704 An Afghan health worker
administers polio drops to a child during an anti-polio
vaccination campaign in Kabul, Afghanistan, 25 January, 2023.
According to UNICEF, repeated immunizations have protected millions of children from polio, allowing almost all countries in the world to become polio-free, aside from the two endemic countries of Pakistan and Afghanistan. EPA/STRINGER STRINGER/
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