Mycobacterium tuberculosis is a near-perfect predator. In 1882, Robert Koch, the physician who discovered the microbe, told a room full of scientists that it…
Updated at 10:56 a.m. on March 14, 2025 Until the second Trump administration took over, the National Institutes of Health—the world’s single largest public…
Until this year, public-health officials have abided by a simple playbook for measles outbreaks: Get unvaccinated people vaccinated, as quickly as possible. The measles…