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

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 ...

The research team used electronic health records data to divide patients into four groups to track symptoms across different obesity levels.

What used to be a predictable “cold and flu season” has evolved into a formidable “triple threat” of the flu, RSV, and COVID-19—and now, the highly contagious norovirus is joining the headlines. For ...

Add Yahoo as a preferred source to see more of our stories on Google. We know the hallmark symptoms of COVID ― like coughing, fatigue, for example ― but there are some COVID-19 symptoms that aren’t ...

A sweeping international study of more than 3,100 long COVID patients has uncovered a striking global divide in brain-related ...

Even a mild case of COVID-19 or the flu can impact the body long after the fever and cough fade, according to new Tulane University research that may help explain why some people struggle to feel ...

A toddler who had no symptoms has been diagnosed with a disease which attacks her brain and is turning her body 'to stone' ...

Cut off from established pathways for managing a chronic illness, many Vermonters with long Covid have reported living in a sort of permanent limbo. They have faced stigma and disbelief from loved ...