Add Yahoo as a preferred source to see more of our stories on Google. It's cold and flu season again. (Getty Images) (HUIZENG HU via Getty Images) This time of year, there are a number of viruses ...

Scientists were pleased when they learned more about how the common cold gains a foothold in the body, identifying key cellular checkpoints that are important targets of the virus. But the real ...

Cold and flu viruses can live on surfaces for a few hours to days. Hard surfaces, like stainless steel and plastic, can keep viruses infectious longer. Viruses can spread through respiratory droplets ...

The common cold looks trivial compared with illnesses that fill intensive care units, yet it still knocks out workers, empties classrooms and costs health systems huge sums every winter. Despite ...

It can be tricky to determine whether your symptoms are actually the result of a common cold, bronchitis, or another type of infection. How do you know whether your cough and runny nose are signs of a ...

When the common cold rips through a household, it can leave a wildly uneven path of symptoms. The same cold-causing rhinovirus that produces barely a sniffle in one person can cause a week of ...