World May 14, 2021

Hundreds of epidemiologists expected public mask-wearing for at least a year

The latest advice from U.S. federal health officials came as a surprise to many involved in public health.

World / Science & Health Apr 17, 2021

Why the vaccine safety numbers are still fuzzy

If there is a connection between the Johnson & Johnson vaccine and a rare clotting syndrome, new cases are likely to emerge now that the word is out.