Select Agents - United States News Beep

Highly magnified microscopic image showing numerous rod-shaped Yersinia pestis bacteria, some arranged in chains and clusters, dispersed across the visual field. The bacteria appear as slender, elongated rods with distinct groupings, typical of Gram-negative morphology. This image, taken at 1125X magnification, reveals the cellular structure and distribution pattern of the plague-causing organism, offering a detailed view relevant to microbiological and epidemiological research.

Read More

A Tipping Point in Yersinia pestis Fitness and Adaptation

July 22, 2025

For more than a century, the plague bacterium Yersinia pestis has haunted public health history. Best known for…