Debunking the idea viruses always evolve to become less virulent The concept can be traced back to a theory from the late 1800s.

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

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.

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

Boston University scientists did gain-of-function research on the COVID-19 virus. Now, the government is investigating the work.

Federal officials are preparing for the possibility of additional human cases of bird flu, testing components to create an H5N1 vaccine after a Texas dairy worker was infected with the highly ...

Think of the Trump administration as a virulent but benevolent virus that has infected the monstrous, bloated, Vindmanesque blob that is the United States government. The beauty of it is that ...

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.

Clade 2b mpox virus, which caused the 2022 outbreak in almost 100 locations outside the endemic regions of Africa, was 100 times less virulent than the closely related clade 2a.

Viruses from bats are likely to be more deadly to humans than viruses from other animals, due to bats' evolved resistance to inflammation.

The other line of research is the development of live-virus vaccines. This involves converting a virulent live polio virus into a nonvirulent one by successive transfer through laboratory animals.