A 13-year-old girl in British Columbia who was hospitalized with bird flu for several weeks late last year harbored a mutated ...

Researchers have discovered a link between a chronic gut infection caused by a common virus and the development of ...

But which viruses are hitting people hardest right now? “A lot of flu out there,” said the Centers for Disease Control and ...

A study using lab-made models of the brain suggests that a herpes virus may be a key link between concussions and dementia ...

But the report, on the experiences of 13 patients, found that the drug had no benefit for some people and that some who ...

Genetic analysis of H5N1 bird flu virus that infected a Canadian teenager shows 'worrisome' mutations, new studies reveal.

More should be done to control the spread of bird flu among animals to avoid more cases in humans, the World Organisation for ...

In both of those cases, virus samples showed that once it was in the body, it mutated in ways that would allow it to stick to cells in the mucous membrane lining the upper respiratory tract.