Infectious disease

Expert Voices

U.S. measles cases mount as anti-vaccine influence goes unchecked

A parent protesting vaccinations outside a recent U.S. Senate committee hearing
An anti-vaccination parent outside a vaccines hearing held by the Senate Committee on Health, Education, Labor and Pensions on March 5, 2019. Photo: Jim Watson/AFP/Getty Images

Between Jan. 1 and March 7, the CDC confirmed 228 cases of measles across 12 states.

Why it matters: These outbreaks — which have been especially large in Washington, Oregon and Texas — were predictable. A 2018 study of vaccination rates identified a dozen likely hotspots, two of which have now seen eruptions of this preventable illness.

Ebola outbreak passes 900 cases amid urgent new warnings

The Ebola outbreak in the Democratic Republic of the Congo has now passed 900 cases, and community mistrust and endemic conflict in the region continues to slow progress despite the availability of promising new treatment options.

Why it matters: This is the 2nd-largest outbreak of Ebola on record, and the first to occur in a country experiencing violent conflict, which is complicating response efforts.

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