FILE - In this Tuesday, Oct. 14, 2014, file photo, oil pumps work at sunset in the desert oil fields of Sakhir, Bahrain. Oil prices have further to drop with no signs of slowing production in the U.S., according to the International Energy Agency, Friday, March 13, 2015. (AP Photo/Hasan Jamali, File) - Associated Press

ABC News - AP - March 13, 2015

Oil prices have further to drop with few signs of slowing production in the U.S., according to a global energy agency.

The International Energy Agency, a watchdog group based in Paris that represents the world's main oil-importing nations, said in its monthly report Friday that the recent stabilization in oil prices is "precarious."

"Behind the facade of stability, the rebalancing triggered by the price collapse has yet to run its course," it said.

That may be playing out right now. Oil prices tumbled 10 percent this week, including a 5 percent drop Friday.

The IEA cautioned that risks of oil supply disruptions are growing. Low prices could raise the risk of social disruption in some countries dependent on oil, the agency said, and the ongoing conflict in Iraq and Libya hasn't slowed down.

THE ATLANTIC  by Olga Khazan                 Mar 18 2015 

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Brian D'Cruz, a Virginia emergency-room doctor, spent the winter volunteering in a Doctors Without Borders Ebola treatment center in Conakry, Guinea. One of the myriad obstacles he encountered was that the yellow hazmat suits Ebola doctors wear take 45 minutes to don, yet are so stifling that a doctor can only spend an hour in one before risking dehydration. Having to frequently drop everything to pull off the suits made it even more difficult to stretch their already meager staff, D'Cruz told me in an interview at the Washington Health Forum this morning.

ASSOCIATED PRESS by Clarence Roy-Macaulay                                                             March 18, 2015

FREETOWN, Sierra Leone  — Sierra Leone is planning another three-day, countrywide shutdown later this month to ferret out Ebola cases, remind people how to protect themselves from the disease and control its transmission.

The West Africa Ebola outbreak that has killed more than 10,000 people is declining but the disease has remained stubbornly entrenched in parts of Guinea and Sierra Leone. Liberia, the third country severely affected, currently has no Ebola cases.

In the drive to zero cases in Sierra Leone, the government will again ask residents to stay in their homes for three days, Alfred Palo Conteh, head of the country's National Ebola Response Center, said Wednesday. The shutdown is expected to take place March 27 through 29, according to Patrick Fatoma, another official with the Ebola response center.

The government has done this before, and some experts said it was unexpectedly effective in providing information about to control the disease.

LIVE SCIENCE by Rachel Rattner                                                                                 March 18, 2015

Health officials have made tremendous progress in fighting the Ebola epidemic in West Africa in recent months, but continued efforts are still needed, experts say. That's because the cases that are happening now could be enough to restart the whole epidemic....

Although health officials are trying to trace all of the people who had contact with each Ebola patient, this "contact tracing" is far from perfect in Guinea and Sierra Leone. As a result, cases pop up among people who officials didn't know were at risk. For example, so far this month, just 14 percent of cases in Guinea occurred among people who were known to have had contact with someone who was sick with Ebola, WHO says.

This "shadow epidemic," which is occurring under the radar, is very worrisome, said Dr. Amesh Adalja, a senior associate and infectious disease physician at the Center for Health Security at the University of Pittsburgh.

If this shadow transmission continues, "it will threaten to cause this whole outbreak to reignite again," Adalja said. "You have to make sure you're finding every case, and stopping transmission in every case."