U.S. First Lady Jill Biden visits Costa Rica children's hospital

STORY: First Lady and President Biden - whose son Beau died of cancer in 2005 - have been leading the Cancer Moonshot initiative since 2006, with the mission to accelerate the rate of progress against cancer.

Costa Rica the final leg of Dr. Biden's Latin American tour.

Her previous stops included Ecuador and Panama. In each country, Biden has emphasized the U.S.'s commitment to a partnership with each nation, according to the State Department.