The timing of symptom onset depends on lots of factors, including the amount of virus to which someone was exposed, Hotez says. Their level of pre-existing immunity may also affect the likelihood or ...

In the winter months, it seems few are safe from some kind of illness — flu, COVID-19, norovirus, colds. While many of the germs that cause this misery can circulate throughout the year, scientists ...

With the world continuing to inch away from the height of the COVID-19 pandemic, a fresh wave of infections is again causing concern—this time fueled by new subvariants of the Omicron variant.

WASHINGTON — In the winter months, it seems few are safe from some kind of illness — flu, COVID-19, norovirus, colds. While many of the germs that cause this misery can circulate throughout the year, ...

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

On March 1, the U.S. Centers for Disease Control and Prevention (CDC) dropped its long-standing recommendation that people with COVID-19 should isolate themselves for at least five days to avoid ...

(AP) - In the winter months, it seems few are safe from some kind of illness — flu, COVID-19, norovirus, colds. While many of the germs that cause this misery can circulate throughout the year, ...