In a Phase 3 trial of more than 18,000 volunteers across three countries, an mRNA influenza vaccine from Pfizer has ...

The mutated strain, known as subclade K, is causing a surge in cases in the United Kingdom, Canada, and Japan. Here's what to know.

The peak of the flu season awaits us and may bring many severe cases and hospitalizations due to a new, menacing variant.

After saying last month it had discontinued its weekly flu report, the Arkansas Department of Health has reversed course, ...

Influenza is starting to surge in Alberta, and hospitals are getting busier as doctors brace for what could be an intense few ...

As the first human case of H5N5 bird flu is confirmed in the US, here are some frequently asked questions about the disease, ...

With the arrival of winter, the Dominican Republic has seen a significant increase in respiratory viruses, especially influenza A and B, which cause the flu. Given this situation, the question arises: ...

The person, who had been hospitalized in King County since early November, died on Nov. 21, health officials said.

Avian influenza, commonly known as bird flu, continues to be detected in wild birds across much of Washington.