WASHINGTON (AP) — The Obama administration is to announce Wednesday it will transfer leftover money from the largely successful fight against Ebola to combat the growing threat of the Zika virus, congressional officials say.

Roughly 75 percent of the $600 million or so would be devoted to the Centers for Disease Control, which is focused on research and development of anti-Zika vaccines, treating those infected with the virus and combating the mosquitoes that spread it. The rest would go to foreign aid accounts to fight the virus overseas.

The officials spoke on condition of anonymity because they were not authorized to publicly discuss the matter before the White House announcement.

Image: A general view on the chimneys of the Hsieh-ho Power Plant in Keelung, northern Taiwan, 17 November 2015. EPA/DAVID CHANG

washingtonpost.com - March 16, 2016 - Chris Mooney

Roughly a year ago, the International Energy Agency announced a wonky yet nonetheless significant development. Looking at data for the year 2014, the agency found that although the global economy grew — by 3.4 percent that year — greenhouse gas emissions from the use of energy (their largest source) had not. They had stalled at about 32.3 billion metric tons of carbon dioxide, just as in 2013.

The agency called this a “decoupling” of growth from carbon dioxide emissions, and noted that it was the “the first time in 40 years in which there was a halt or reduction in emissions of the greenhouse gas that was not tied to an economic downturn.” For decades prior to 2014, economic growth had pretty much always meant more pollution of the atmosphere, and a worsening climate problem.

The Obama administration said Tuesday it will allow foreign nationals from Ebola-affected countries in West Africa to stay in the U.S. for another six months, even though global health officials said the outbreak that killed 11,000 people abroad is officially over.