Customers in Louisiana and nationwide are dealing with egg prices going up and sparsely populated aisles at the grocery store following the spread of the bird flu in the U.S.

This health risk report comes after news that the first patient who was hospitalized, and who was the first human case of avian influenza, in Louisiana has died. The patient was over 65 years old ...

Avian flu is rampant in poultry farms and in wild birds in the U.S. Every mutation brings the virus one step closer to the brink of human-to-human transmission, but predicting whether a virus will cross that threshold remains an uncertain science.

Public-health officials are now comparing the genetic features of the teen’s case with that of a Louisiana patient whose death this week was the first reported to be attributed to H5N1 in the U.S.

Seven Delmarva-region commercial operations have now reported cases of the highly contagious virus.

"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers wrote.

Authorities have detected a second case of bird flu at a poultry farm in Georgia's Elbert County. The case was found less than a week after a case was detected at a farm less than a mile away. It's the third case detected so far in 2025.

Avian flu is a common illness among birds, but it can spread to humans and other mammals. The virus is shed through excretions, such as saliva and feces. Exposure to sick or dead animals is the primary way humans contract bird flu, according to the CDC.

The Centers for Disease Control and Prevention says hospitals treating people for the flu should test them for avian influenza within 24 hours.

Staying a step ahead of the avian influenza virus with surveillance, testing and research could mean the difference between a close call and global catastrophe

The U.S. Centers for Disease Control and Prevention is urging health care workers to accelerate bird flu testing for patients hospitalized with flu symptoms.

The CDC is calling for expanded testing of bird flu after a child in California tested positive for the virus despite no known contact with animals.