 Image Number K7335-4 |
An electron microscope enables microbiologist Thomas Burrage to study the effect of genetically engineered strains of African swine fever virus on the viruses' major target cell, the macrophage.
Photo by Keith Weller
An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.