Snapshots: The world in 24 hours, April 26

A Kayapo child does inhalation on the sixth day of a medical expedition of the "Expedicionarios da Saude" (Brazilian Health Expeditions) in Kikretum community in Sao Felix, northern Brazil April 26, 2011. The organization is currently on a medical expedition to the area with volunteer doctors that twice a year build a mobile hospital to provide clinical and surgical treatment for indigenous tribes and residents from different parts of the Amazonian Rainforest. [Photo/Agencies]

Children sit next to women praying during an anti-government rally to demand the ouster of Yemen's President Ali Abdullah Saleh, outside Sanaa April 26, 2011.[Photo/Agencies]