A new generation of infected terrorizes what little survivors remain in '28 Years Later.' A trusty and stomach-churning guide ...

Boston University scientists did gain-of-function research on the COVID-19 virus. Now, the government is investigating the work. ... existing strains that boosted its virulence and transmissibility.

While you are soaking up the summer sun, doctors say you can still get sick, including from two new COVID strains that are ...

The current pandemic H1N1 virus thus far has not proved to be as virulent as was initially feared, but flu viruses love cold dry air and winter weather has just set in many parts of the world.

As of now, 17 states have reported H5N1 bird flu cases in humans, but there is still no evidence for transmission between ...

The Nature of Viruses Viruses are microscopic entities that require a host's cellular machinery to replicate. ... it also means that a benign virus can potentially become more virulent over time.

This is the second case of a human sickened by this highly virulent strain of bird flu in the United States, raising questions about whether this pathogen is now more easily transmitted among mammals.

Study: Virulence Differences of Monkeypox Virus Clades 1, 2a and 2b.1 in a Small Animal Model. Image Credit: MIA Studio/Shutterstock. This news article was a review of a preliminary scientific ...

"With regard to dangers posed by bat viruses, it's important to remember that transmission and virulence tradeoff, so viruses that cause the highest case fatality rates are not likely to result in ...