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.

F lu season is upon us and it's not just restricted to humans. Highly pathogenic avian influenza (HPAI), also known as avian influenza or bird flu, is a spreadable virus that affects wild birds, poultry, livestock, pets and, in rare cases, humans.

Two different lineages are currently circulating, one carried by wild birds, the other infecting dairy farms in the US. The challenge is to find out how far the virus is evolving to adapt to humans, following the death of an American patient.

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.

Dr. Michael Osterholm says that the primary kind of birds impacted by the flu is migratory waterfowl, like geese and ducks, and these birds often hang out in farm fields where they defecate.

The American Veterinary Medical Association has issued recommendations for keeping pets and backyard flocks safe from highly pathogenic avian influenza, and the recommendations are also a useful guide for humans.

Highly Pathogenic Avian Influenza, also known as H5N1 or the bird flu, was confirmed in a backyard flock of pet birds in New London County on Friday, according to the state departments of Agriculture and Public Health,

Kentucky is not among the states where avian flu — also known as H5N1 — has been detected in humans, but the spread is increasingly on the radar of healthcare leaders across the country. Friday, the Centers for Disease Control issued a Health Advisory to clinicians and laboratories due to sporadic human infections.

Highly pathogenic avian influenza, or HPAI, is beginning to spread in parts of Missouri. As a result, the Missouri Department of Agriculture has suspended all poultry and waterfowl auctions, shows, and swap meets in counties that are impacted by HPAI.

Struggling to find eggs or noticing the price for a carton is ridiculously high? Here's what's happening and if it'll change anytime soon.

A UC Davis veterinary professor explains how bird flu is transmitted, why it’s an “insane outbreak” and the worst-case scenario.