A new study quantifies the substantial impact of diet on the successful treatment and containment of tuberculosis.

Every day we see stark images of the war in Ukraine — bombed-out buildings, explosions, and bodies lying in the streets. But there's another, less visible war — against the bacteria and viruses that are gathering their forces together. They, too, will infect parts of the population and may spread throughout Europe. Here's what Ukrainians — and their neighbors — are facing on the infectious disease front.