The preliminary results will have to be confirmed by the National Veterinary Service Laboratories, which could take well into ...

A person in Louisiana has been hospitalized with the United States' first serious case of H5N1 bird flu, following 60 milder ...

A 2.5-year-old returning to Australia from India was infected with a reassortant H5N1 virus, revealing genetic mixing between ...

A patient in Louisiana was hospitalized after a recent exposure with the CDC issuing guidance to those most at-risk of infection.

When, where and how the H5N1 bird flu virus may evolve and its capacity to spark a pandemic is hard to predict — in part, ...

The CDC detected a change in the strain that would allow the virus to more easily travel through human airways.

A genetic analysis of the H5N1 bird flu in a Louisiana patient reveals potential mutations for human transmissibility, says ...

The next day, they confirmed the presence of an H5N1 strain of highly pathogenic avian influenza (HPAI), and more deaths followed in the flock of two dozen “non-poultry” birds. (Officials did ...

However, on Wednesday, the first severe illness from the H5N1 strain of the virus in a human was reported in Louisiana. The 65-year-old, who is understood to have underlying health conditions ...

But these deaths have affected people outside the U.S. and have involved H5N1 strains with different genetic traits that might help explain their virulence. The CDC still considers the risk of ...

Further, the CDC collected partial genetic data of the H5N1 strain infecting the patient, finding it to be of D1.1. genotype, which has been detected in wild birds and some poultry in the US.