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U.S. Health Officials Urge Vigilance as Ebola Spreads in Uganda

Getting One Vaccine Is Good. How About Mix-and-Match?

Getting One Vaccine Is Good. How About Mix-and-Match?

Ebola Survivor Infected Years Ago May Have Started New Outbreak

U.S. Will Revive Global Virus-Hunting Effort Ended Last Year

A Virus-Hunter Falls Prey to a Virus He Underestimated

Measles Cases Continue to Rise Around the World

W.H.O. Continues Emergency Status for Ebola Outbreak in Congo

You’re Swabbing a Dead Gorilla for Ebola. Then It Gets Worse.

Health Experts Fight Ebola in Congo, and Each Other

As Congo’s Ebola Outbreak Drags On, Untracked Cases Sow Confusion

Two New Ebola Treatments Prove Highly Effective in Congo Epidemic

Congo Draws Up a New Battle Plan Against Ebola Amid Power Struggle

Earlier Ebola Outbreaks, and How the World Overcame Them

Congo’s Ebola Outbreak Is Declared a Global Health Emergency

Congo’s Ebola Epidemic Is Declared a Global Health Emergency

Ebola Outbreak Reaches Major City in Congo, Renewing Calls for Emergency Order

A New Ebola Vaccine Strategy in Africa: Smaller Doses

As Ebola Cases Rise in Congo, the W.H.O. Declines to Issue Emergency Declaration

Ebola Epidemic in Congo Could Last Another Year, C.D.C. Director Warns