The patient in Louisiana who was hospitalized with severe bird flu illness was found to have a mutated version of the virus, the U.S. Centers for Disease Control and Prevention (CDC) announced last ...

H5N1 bird flu samples collected from a severely ill patient in Louisiana show signs of mutations that may make the virus more transmissible to humans, the Centers for Disease Control and Prevention ...

An H5N1 bird flu mutation associated with increased infectiousness and disease severity has been found in two cats. Since the beginning of this year, more than 50 cats have been infected with H5N1 ...

A new strain of bird flu (highly pathogenic avian influenza, or HPAI) has been detected on a duck farm in California. The World Organisation for Animal Health (WOAH) reported the outbreak of the new ...

In 2024, at least 66 human cases of bird flu have been reported in the United States, each one raising the risk of another pandemic like COVID-19. So far, most cases have been described as “mild,” ...

The Centers for Disease Control and Prevention (CDC) warns that while the risk of human to human transmission remains low, experts and officials must be aware of the risk that mutations in the virus ...

Genetic analysis suggests the H5N1 virus has the capacity to mutate in ways that could make it more transmissible to humans. H5N1 bird flu samples collected from a severely ill patient in Louisiana ...