Nat Lash is a news applications developer at ProPublica.

Nat Lash
Nat Lash is a news applications developer at ProPublica.
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What ProPublica Found in the Genetic Code of America’s Measles Outbreaks
The U.S. eliminated measles a quarter century ago, but to keep its “measles-free” designation, officials will have to make a strong case that the virus isn’t continuously spreading within its borders. Our analysis shows how difficult that could be.











