In hospitalized patients, eosinophil levels positively correlated with antibiotic use, systemic inflammation, and worsened ...

Additional experiments in cultures of human cells that line the lung and immune cells showed that cells in which the gene for ...

Updated vaccines, proper hygiene and staying home when you're sick can help prevent the spread of respiratory illnesses this ...

It’s possible to catch a cold or get the flu at any time of year. But the chances of becoming sick increase during cold and ...

But, once again, COVID-19 isn’t the only respiratory infection circulating this fall. For a few years, the second seasonal ...

Health officials were struggling to answer a broader and potentially worrisome question: how the infection occurred.

Researchers have identified new roles for a protein long known to protect against severe flu infection -- among them, raising the minimum number of viral particles needed to cause sickness.

There have been dozens of confirmed human cases of bird flu in the U.S. this year. Experts discuss the symptoms, risks and ...

A Canadian teenager is currently in critical condition after contracting a suspected case of H5N1 bird flu, a British ...

A teenager diagnosed with bird flu in British Columbia is the first domestically acquired human case of H5N1 avian influenza, ...

A Canadian teenager infected with bird flu — that country’s first case involving a locally acquired infection — is in ...

Reports this week of a teen in British Columbia who tested positive for H5 avian influenza has renewed attention on the virus ...