(Source: UCSF - University of California, San Francisco) Since a 2-year-old child fell ill in Guinea last December, the Ebola virus has spread through West Africa, first with an outbreak that seemed to have died out in May and then with an explosive second wave of infections that spread throughout Guinea, Sierra Leone and Liberia. Nigeria and Senegal have so far been able to stop the spread of the disease, as have the United States and Spain, but cases continue to multiply exponentially across West Africa. United Nations officials say 19,000 health care workers will be needed there by Dec. 1, when the large Ebola treatment centers being built there by the U.S. are up and running. Because...
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