President Trump’s executive order for the U.S. to withdraw from the World Health Organization could greatly impact the nation’s ability to track and respond to global disease threats.

A health organization created in the wake of World War II to fight disease across the planet is losing its biggest donor, the United States.

WHO, the United Nations health agency ... to help the world understand how the pandemic began. During his latest election campaign, Trump was more brazen, calling the organization “nothing ...