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Topic: update

(<a href='url to photographer'>Festa</a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>)

Ebola drug enters trial

Joanna Rothkopf
Scanning electron microscopic image of Ebola virions (Public Library of Science)

WHO: Ebola is an 'emergency'

Joanna Rothkopf
Scanning electron microscopic image of Ebola virions (Public Library of Science)

Ebola death toll rises

Joanna Rothkopf
(CNN)

Sarah Gray