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Efforts to Contain Ebola Epidemic Are Faltering, Aid Leader Warns

Marburg Virus, Related to Ebola, Is Found in Bats in West Africa

In Congo’s Ebola Outbreak, Experimental Treatments Are Proving Effective

Biosafety Reforms Still Lagging at Military Labs

‘Latent’ Tuberculosis? It’s Not That Common, Experts Find

China Has Withheld Samples of a Dangerous Flu Virus

Nipah Virus, Dangerous and Little Known, Spreads in India

Ebola Erupts Again in Africa, Only Now There’s a Vaccine

‘We’re Out of Options’: Doctors Battle Drug-Resistant Typhoid Outbreak

Yellow Fever Circles Brazil’s Huge Cities

Lassa Fever Erupts in Nigeria

This Flu Season Is the Worst in Nearly a Decade

The Next Flu Pandemic Will Appear When You Least Expect It

Bird Flu Is Spreading in Asia, Experts (Quietly) Warn

Deadly Plague Outbreak in Madagascar Appears to Wane

Fearsome Plague Epidemic Strikes Madagascar

W.H.O. Elects Ethiopia’s Tedros as New Director General

Candidate to Lead the W.H.O. Accused of Covering Up Epidemics