Ebola continues rapid spread in West Africa

But small pockets of good news dot World Health Organization’s latest report

Ebola viruses (red) on surface of a monkey cell (blue)

SUPPRESSION IN SIGHT  Ebola viruses (red) grow from the surface of a monkey cell (blue) in this scanning electron micrograph. Containing the virus has been difficult in West Africa, but some countries are on their way toward becoming Ebola-free. 

NIAID/Flickr (CC BY 2.0)

Ebola has now infected about 9,000 people and killed nearly 4,500, including 263 health care workers, the World Health Organization reported Wednesday.