There have been four flu pandemics since the start of the 20th century. What we’ve learned—and why we still can’t predict the ...

The first severe human case of bird flu was recently reported in the U.S. Here are some ways the U.S. may be repeating the ...

Current strains of bird flu are “poorly suited for pandemic potential,” said Dr. Shira Doron, a Tufts Medicine infectious ...

One of the earliest strains of bird flu isolated from a human in Texas shows a unique constellation of mutations that enable ...

Over the past several months, bird-flu numbers have been steadily ticking up, especially among farmworkers who interact ...

For influenza viruses, imperfection is a strength. They constantly mutate, producing new strains that challenge immune ...

Since 2022, the largest bird flu outbreak in history has raged across the United States. As a result, egg prices have climbed to record highs and shelves are barren at many grocery stores. Recently, a ...

A Louisiana patient is the first person in the United States to die as a result of H5N1 infection. One expert likens what ...

At least 66 people, most of them dairy workers, have been infected. Last week, the Louisiana Health Department reported the ...

A third cat, Big Boy, was in hospital for a week before tests showed the animal was infected with the bird flu virus ...

The first human patient in the United States with a confirmed case of avian influenza has died, according to a press release ...