A health worker administers a polio vaccine to a child in Lahore, Pakistan, Monday, January 16, 2023. Pakistan is launching its first anti-polio campaign of the year, targeting more than 44 million children under the age of five. It is one of two countries in the world where polio continues to threaten the health and well-being of children. (Photo by K.M. Chaudary/AP Photo)
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