Ebola’s toll moved beyond 10,000 deaths Thursday even as researchers warned of yet another threat to hard-hit West Africa: On the heels of the unprecedented devastation, large outbreaks of measles and other vaccine-preventable diseases could move into the region. Ebola derailed child immunizations in the three countries hardest hit by Ebola – Liberia, Sierra Leone and Guinea, leaving hundreds of thousands more children vulnerable to the more routine infections, researchers said Thursday.