Because H5N1 hasn’t been infecting sea lions for very long, since just 2023, there is still a lot to learn about how the virus affects the animals, says Neira, of the University of Chile in ...

Historically, human H5N1 infections were sporadic and always related to exposure to infected poultry. As of November 2024, more than 900 human cases in 24 countries had been reported, with ...

Mexico, Chile and Uruguay halt poultry imports from Brazil after bird flu outbreak ... Although most of the H5N1 samples have been handled by the state public health laboratory system, ...

The ongoing surge of clade 2.3.4.4b H5N1 viruses in avian species has resulted in numerous spillover events into mammalian species including dairy cows and humans, ... Severe Respiratory Disease in ...

Although those vaccine materials were designed using versions of H5N1 flu from the early 2000s, a recent study suggests that they create an antibody response to the newer 2.3.4.4b versions that ...

Experts urge U.S. to prepare for possible new pandemic as H5N1 bird flu outbreak spreads with dairy animal and human cases. Here's what to know.

Confirmation of the first H5N1 bird flu infection of a backyard flock in San Mateo County on Feb. 4, ... Mexico, Chile and Uruguay halt poultry imports from Brazil after bird flu outbreak ...

Bird flu, also known as H5N1, has been around for decades. But the discovery in 2024 that the virus spread from wild birds to cows came as a surprise to public health experts, according to officials .

Experts believe three more cats in Los Angeles County have been infected with H5N1 bird flu. Two others succumbed to the disease earlier this month after drinking recalled raw milk from Fresno ...

Experts urge U.S. to prepare for possible new pandemic as H5N1 bird flu outbreak spreads with dairy animal and human cases. Here's what to know.

Experts warn about the possibility of a new pandemic in 2025 as the H5N1 bird flu virus spreads across all 50 states, impacting US dairy farms and leading to human infections. Here's what to know.