Here are a few options for a formal rewrite, depending on your focus:
Option 1 (Direct and formal):
“Misinformation Hinders Ebola Response Efforts in the Democratic Republic of Congo”
Option 2 (Emphasizing the impact):
“The Impact of Misinformation on Ebola Containment Efforts in the Democratic Republic of Congo”
Option 3 (Concise):
“Combating Ebola: The Role of Misinformation in DR Congo’s Crisis Response”
Recommendation:
“Misinformation Hinders Ebola Response Efforts in the Democratic Republic of Congo” is the most professional and standard choice for a news headline.
(Note: In formal journalism, you should remove the source/metadata—like “myRepublica – The New York Times Partner…”—from the title itself.)