The medical impact of the new coronavirus is coming into sharper focus as it continues its spread in what is now officially recognized as a pandemic. Its true fatality rate isn’t yet known, but it ...

Researchers have devised a new tool for discerning between naturally occurring viral outbreaks and those resulting from lab ...

"As these viruses continue to evolve, public health officials watch carefully to see whether new strains will be more easily ...

LOS ANGELES (KABC) -- Is the coronavirus getting weaker as it spreads through a larger portion of the population? And should we expect it to mutate when the anticipated second wave hits this winter?

As the weather cools and fall approaches, COVID-19 cases are still spiking in much of the United States. The country has yet to emerge from a late summer COVID wave driven by the highly contagious new ...

COVID-19 is the shortened name of coronavirus disease 2019. It is a pandemic illness caused by a coronavirus. The virus that causes COVID-19 is severe acute respiratory syndrome coronavirus 2, ...

With measles outbreaks, flu spikes, and COVID as a seasonal threat, learn key differences between these contagious diseases, symptoms, vaccine advice.

The COVID-19 incubation period is the time between exposure to the SARS-CoV-2 virus and the onset of symptoms. Over 98% of people in the U.S. have some COVID-19 immunity from vaccines or prior ...

The top U.S. public health agency stirred confusion by posting — and then taking down — an apparent change in its position on how easily the coronavirus can spread from person to person through the ...

In order to understand the current controversies about access to the COVID-19 vaccine, we need to reflect on how we got here. The virus is called COVID-19 because it emerged in December of 2019 in ...