What causes the flu and what causes a cold? Colds and flu are both respiratory illnesses, but are caused by different viruses. “Colds are primarily caused by viruses, with rhinovirus being the most ...

Dr. Shira Doron, chief infection control officer at Tufts Medicine, says it can be difficult to tell the difference between ...

Coronavirus disease 2019 (COVID-19) can cause many of the same symptoms as the common cold, seasonal allergies and the flu. So how can you tell if you have COVID-19? It may help to learn about the ...

“The single best way to reduce the risk of seasonal flu and its potentially serious complications is to get vaccinated each year,” according to the US Centers for Disease Control and Prevention. Many ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Feeling sneezy? You’re not alone. Americans get an average of two to three colds per year, according to ...