A health worker marks a child's finger after administering a polio vaccine in Lahore, in Lahore, Pakistan, Monday, April 13, 2026. (AP Photo/K.M. Chaudary)

A health worker administers a polio vaccine to a child in Lahore, in Lahore, Pakistan, Monday, April 13, 2026. (AP Photo/K.M. Chaudary)

A health worker administers a polio vaccine to a child in Lahore, in Lahore, Pakistan, Monday, April 13, 2026. (AP Photo/K.M. Chaudary)

Health workers walk through an ally to administrate polio vaccine among children at a neighbourhood in Lahore, Pakistan, Monday, April 13, 2026. (AP Photo/K.M. Chaudary)

A health worker administers a polio vaccine to a child at a school in Lahore, Pakistan, Monday, April 13, 2026. (AP Photo/K.M. Chaudary)

People sit outside the Church of Notre Dame d'Afrique, ahead of Pope Leo XIV's visit, in Algiers, Algeria, Wednesday, April 8, 2026. (AP Photo/Fateh Guidoum)

A banner showing a photo of Pope Leo XIV and Algerian President Abdelmadjid Tebboune in Annaba, eastern Algeria, Saturday, April 11, 2026, ahead of Pope Leo XIV's visit. The banner in Arabic reads, "Let's live in peace and harmony." (AP Photo/Fateh Guidoum)

Pope Leo XIV is welcomed by Algerian President Abdelmadjid Tebboune, center right, upon his arrival at Algiers' Houari Boumédiène International Airport on Monday, April 13, 2026, at the start of an 11-day apostolic journey to Africa. (AP Photo/Andrew Medichini)