Federal health officials recently called for more testing of employees on farms with bird flu after a new study showed that some dairy workers had signs of infection, even when they didn’t report feeling sick.
Expanded testing needed for bird flu infections
The colorized electron microscope image released by the National Institute of Allergy and Infectious Diseases shows avian influenza A H5N1 virus particles -- yellow -- grown in Madin-Darby Canine Kidney epithelial cells -- blue.





