Results show that, using unadjuvanted subvirion vaccines, at least two vaccine ... Mortality of H5N1 infections in humans has exceeded 50%, a mortality worse than that associated with the "Spanish ...

Although infectious disease experts aren’t sounding the alarm yet, they’re analyzing virus data to understand mutations and ...

Experts warn that the highly pathogenic H5N1 bird flu virus, which has already infected mammals and demonstrated mutations ...

California's public health department had reported the case on Tuesday, but said there was no evidence of human-to-human ...

A strain of avian influenza is showing signs of adaptation to human hosts, but there is no evidence that it can transmit from ...

When the Trump administration arrives in Washington next year, it will be faced with an avian influenza outbreak that has ...

The H5N1 virus that infected a Canadian teen appears not to have spread, but it shows signs of mutation that makes flu ...

A new potential case of bird flu in a California child without known contact with infected animals is raising concerns about ...

As H5N1 bird flu spreads among California dairy herds and southward-migrating birds, health officials announced Friday six more human cases of infection: five in California and one in Oregon ...

The symptoms of bird flu in humans are similar to symptoms caused by other flu viruses, Dr. Schaffner said. They include ...

The sense of deja vu is hard to shake, after a viral outbreak that exploded to become the COVID-19 global pandemic.

New H5N1 infections in California and Oregon raise concerns about avian flu's evolving threat to humans. Medical professionals and public health experts have grown more concerned as the H5N1 avian flu ...