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Stories by Helen Branswell

New Hope for Ebola?

How the largest outbreak on record jump-started the development of two experimental vaccines and a couple of promising treatments

March 1, 2015 — Helen Branswell

Why Polio Isn't Going Away

As the number of cases of the paralytic disease fall, world health officials have to grapple with a vexing problem: a component of the most widely used polio vaccine now causes more disease than the virus it is supposed to fight

April 1, 2012 — Helen Branswell