Why Measles Is Back in Some of Europe's Richest Cities
Outbreaks this year have clustered not in poor regions but in affluent urban districts where vaccination rates have quietly slipped below the threshold.
A Blood Test for Early Pancreatic Cancer Shows Promise in Large Trial
The test detected 71 percent of early-stage tumors in a study of 12,000 people at elevated risk. Researchers cautioned that false positives remain a concern.
