This time of year, there are a number of viruses doing the rounds, and it can be hard to dodge the dreaded flu or common cold. If you are unlucky enough to get struck down with illness, you will ...

While children play in winter wonderlands, families nestle together near the fire, and workers attend their annual holiday party, viruses are plotting to give them a cold. As an infectious disease ...

There are five stages of cold sores. These lead from the initial tingling in the area to the healing stage. Cold sores, also known as herpes labialis, are caused by nongenital herpes simplex virus ...